Same-day shipping cutoff: Noon Pacific Time

Spring time is in full swing here at ProCycle.  With these busy days please be sure to let us know if your order is time sensitive.  We try to do as much as we can to accommodate your upcoming trip.  

Exhaust

WR250R '08 - '20 WR250X '08 - '20

The EVO R is a tried-and-true series that will save weight, add noticeable performance gains and sound tremendously better than stock.

  • Hard anodized oval shaped aluminum muffler
  • TIG welded reinforced muffler bracket(s)
  • 304 stainless steel mid pipe
  • Red powder coated stainless steel end tip
  • Lighter than stock exhaust system
  • Huge horsepower and torque gains
  • Sleek muffler design allows for maximum clearance
  • Removable screen-type spark arrestor included
  • Handmade in the USA
  • 1 Year Limited Manufacturer’s Warranty
Ships same business day
$626.95
KLX140(R) '08 - '25 KLX140L(RL) '08 - '25 KLX140G(RF) '17 - '25

The EVO R is a tried-and-true series that will save weight, add noticeable performance gains and sound tremendously better than stock.

  • Hard anodized oval shaped aluminum muffler
  • TIG welded reinforced muffler bracket(s)
  • 304 stainless steel mid pipe / head pipe
  • Red powder coated stainless steel end tip
  • Lighter than stock exhaust system
  • Huge horsepower and torque gains
  • Sleek muffler design allows for maximum clearance
  • Removable screen-type spark arrestor included
Please contact us for availability information
$373.95
KLX250S '94 - '14 KLX300SM '21 - '23

The EVO R series draws on our rich heritage of making power. Offered for various off road MX and sport ATV models, the EVO R is a tried-and-true series that will save weight, add noticeable performance gains and sound tremendously better than stock.

  • Hard anodized oval shaped aluminum muffler
  • TIG welded reinforced muffler bracket(s)
  • 304 stainless steel mid pipe
  • Red powder coated stainless steel end tip
  • Lighter than stock exhaust system
  • Huge horsepower and torque gains
  • Sleek muffler design allows for maximum clearance
  • Removable screen-type spark arrestor included
  • Handmade in the USA
  • 1 Year Limited Manufacturer’s Warranty
Choose Year
Please contact us for availability information
$626.95
XR650L '93 - '25 XR600 '85 - '00

The EVO R series draws on our rich heritage of making power. Offered for various off road MX and sport ATV models, the EVO R is a tried-and-true series that will save weight, add noticeable performance gains and sound tremendously better than stock.

  • Hard anodized oval shaped aluminum muffler
  • TIG welded reinforced muffler bracket(s)
  • 304 stainless steel mid pipe / head pipe
  • Red powder coated stainless steel end tip
  • Lighter than stock exhaust system
  • Huge horsepower and torque gains
  • Sleek muffler design allows for maximum clearance
  • Removable screen-type spark arrestor included
  • Handmade in the USA
  • 1 Year Limited Manufacturer’s Warranty
Ships same business day
$681.95

The FMF Powerbomb and Q4 Muffler are legendary in the exhaust market.

The Powerbomb header promotes better flow by allowing a small expansion of the exhaust gasses improving scavenging. The 'bomb' also acts as a pre-muffler taking the edge off of overall sound levels.

The Q4 muffler employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available with a sound output of 96dB; with most models below 93 dB. It is constructed from aircraft grade aluminum and high strength stainless steel.

Choose Year
Please contact us for availability information
$664.95
XR100 '86 - '00 XR80 '86 - '00

All of these options are for complete systems, including head pipe and muffler. The S option is for a Silencer only while the S/A is for a system with a Spark Arrestor.

The latest version of the Powercore 4 design incorporates a hi-flow core which mas more surface area to absorb more sound while flowing more exhaust. The silencer is constructed with an extruded aluminum canister is MIG/TIG welded and has space age internal packing. This system is lighter, stronger and provides more power than stock exhausts. The pipe is a stainless steel unit for strength and weight savings.

Powercore 4 S/A has a US Foresty approved, maintenance free, stainless steel spark arrestor screen to be sure you are safe and legal in the woods.

Choose Year / System
Ships in 3-5 business days
$299.95

Another great combination package - the FMF Powerbomb header and Powercore 4 Muffler.

The Powerbomb header promotes better flow by allowing a small expansion of the exhaust gasses improving scavenging. The 'bomb' also acts as a pre-muffler taking the edge off of overall sound levels.

The PowerCore4 muffler was developed to increase the horsepower and torque throughout the entire power curve and give you a noticeable power increase that is very usable and beneficial, no matter what your riding style or ability is.

Some of the features of the PowerCore 4 include: space age internal packing for maximum packing life; hi-flo modular end cap; internal shape of core uses hi-flo technology; enhanced sonic evacuation provides for higher flow and increased power and removable spark arrestor.

Choose Year
Add Anti-Seize
Please contact us for availability information
$617.95

The T-6 exhaust system contains a stainless steel head pipe, brushed aluminum canister and a carbon fiber end-cap for added durability and a professional look. This exhaust system features the same benefits as the T-6 Stainless Steel Exhaust System, but is designed to fit Yamaha's TT-R125 model. In addition to all of these features, the T-6 will come with a removable United States Forest Service approved spark arrestor for trail/off-road riding.

Features Include:

  • Improves performance
  • Stainless steel construction throughout head pipe
  • Brushed aluminum canister
  • Carbon fiber end-cap
  • Strong mounting bracket for increased strength and durability
  • Asymmetrical muffler configuration for increased packing volume
  • Removable U.S.F.S. approved spark arrestor
  • Two piece system including head pipe and canister
  • TIG precision welding
Ships in 3-5 business days
$465.95
KLX110 '02 - '09 DRZ110 '03 - '05

The T-6 Stainless Steel Exhaust System offers the same benefits as our popular Ti-6 Titanium Exhaust System, but the T-6 is constructed of stainless steel and aluminum for increased strength and durability while giving riders a more affordable alternative to titanium. The T-6 comes with a removable United States Forest Service (USFS) Approved Spark Arrestor making it easy to alternate between off-road and closed course riding.

Features:

  • Improved performance
  • Titanium canister
  • Stainless steel header
  • Carbon fiber end-cap
Choose Year and Model
Please contact us for availability information
$465.95

Includes the Enduro Series RS-2 muffler and stainless steel header. This potent and versatile design is engineered to provide increased power and power delivery. The RS-2 has a pyramidal shape that features increased volume, and is a quieter system with a larger core — and it offers the added bonus of outstanding performance in a value-priced package.

Ships in 3-5 business days
$538.95
DRZ400S '00 - '25 DRZ400SM '00 - '25

The race-bred RS-2 exhaust has proven to be extremely popular among rider looks for a combination of performance and value. It enhances performance dramatically, provides an enviable exhaust note and offers the unmistakable look and sound of Yoshimura. RS-2 mufflers feature a straight baffle that leads to a single turn-down machined aluminum end cap.

All models have a USFS Approved spark arrester in a oval-shaped sleeve with a large volume of packing material.

Choose Finish
Ships in 3-5 business days
$799.95
CRF250L Rally '17 - '20 CRF250L '17 - '20

The RS-4 Slip-On exhaust has a unique design that provides an unrivaled combination of power and a quiet exhaust note.

  • Pentagonal-shaped sleeve
  • Front muffler cap functions as a polyresonant chamber which helps reduce noise
  • Laser-cut heat shield on polyresonant chamber
  • Two-stage stepped baffle
  • Turn-out carbon fiber end-cap
  • Stainless steel tail-pipe
Choose Year / System
Ships in 3-5 business days
$658.95

Pre-Order

Race, RS-4, Slip-On, Stainless Steel with Carbon Fiber End Cap

  • Pentagonal-shaped muffler
  • Maximized internal volume
  • Polyresonant duplex front chamber
  • Stepped, two-stage core baffle
  • Spark Arrestor/Sound Insert Compatible
Choose System
Ships in 3-5 business days
$548.95
DRZ400SM '05 - '25 DRZ400S '00 - '25

The RS-4 Twin Pipe kit was previously only available as a custom system for Kevin Schwantz.

Yoshimura is offering these incredible "Twice Pipes" which are completely fabricated by hand and TIG welded to perfection. They certainly sit at the high end of what is available for the mighty SM... The pipes have a stainless steel header and "Y" pipe mated to twin carbon fiber or aluminum RS-4 mufflers for incredible looks and performance. The kit also comes with a custom Yoshimura side stand.

  • Pentagonal-shaped sleeve
  • Front muffler cap functions as a poly resonant chamber which helps reduce noise
  • Two-stage stepped baffle
  • Carbon fiber end-cap
Choose System
Add Exhaust Gaskets
Ships in 3-5 business days
$1,068.95
Universal fit. May require additional adjustment or modification.

Set your bike apart with a custom exhaust look. Withstands direct heat up to 2000°F.

  • 2 inches wide and 25 feet long
  • Available in black or natural
  • 4 stainless steel tie wraps
Choose Color
Ships same business day
$45.95
XR650L '93 - '25 XR600 '85 - '00

The EVO R series draws on our rich heritage of making power. Offered for various off road MX and sport ATV models, the EVO R is a tried-and-true series that will save weight, add noticeable performance gains and sound tremendously better than stock.

  • Precision-bent TIG welded 304 stainless steel head pipes & collector pipe
  • Larger diameter than stock head pipe
  • Lighter than stock head pipe
  • Increased horsepower and torque gains
  • Handmade in the USA
  • 1 Year Limited Manufacturer’s Warranty
Ships same business day
$308.95
WR250R '08 - '19 WR250X '08 - '19

The EVO R series draws on our rich heritage of making power. Offered for various off road MX and sport ATV models, the EVO R is a tried-and-true series that will save weight, add noticeable performance gains and sound tremendously better than stock.

  • Precision-bent TIG welded 304 stainless steel head pipe
  • Larger diameter than stock head pipe
  • Lighter than stock head pipe
  • Increased horsepower and torque gains
  • Handmade in the USA
  • 1 Year Limited Manufacturer’s Warranty
Please contact us for availability information
$253.95
KDX200 '95 - '06 KDX220 '95 - '06

The FMF Gnarly pipe focuses on increasing the lower RPM horsepower and torque to get you out of the toughest terrain. When looking to add 4-stroke tractor like torque to your 2-stroke and you need a pipe to withstand the harsh elements, this is the pipe for you. Strong and rugged, this aggressive pipe dishes out handfuls of torque and bottom to mid range pull needed for late model 200cc through 500cc machines and the rigors of the off road domain.

  • Nickel plating is an FMF trademark and has been ‘copied’ by everyone making it the most imitated expansion chamber in the world.
  • Super strong18 gauge steel construction makes it GNARLY!
  • O-Rings Included
Choose Style
Ships in 3-5 business days
$299.95
CRF450X '19 - '25
  • The ultimate power booster featuring exclusive Ti-Metal construction
  • Improved bottom to mid-range power
  • Produce the low end of a longer header and the top end of a short header
  • Less susceptible to damage than a long header
  • Runs well with sound-restricting mufflers; effectively reduce sound output by as much as 1.5 dB
  • Substantial power increases everywhere
  • Constructed of extremely lightweight materials
Ships same business day
$349.95
KLX250S '09 - '10 KLX250S '12 - '20 KLX300R '20 - '25
  • Select applications available in SX version that is designed for more low to mid-range power and an MX version that is focused in the mid-to-upper rpm range
  • Act as "pre-muffler" helping to lower the decibel output
  • Available in stainless steel for strength combined with light weight, or in titanium for even greater weight savings
  • Utilize FMF's patented module precisely located at the initial stage of the header for specific applications
  • Horsepower is increased as much as 10%
  • The expansion and contraction of exhaust sonics through the system causes increased flow
  • Position "Bomb" increases performance
Please contact us for availability information
$249.95
WR250R '06 - '18 WR250X '06 - '11

The PowerBomb header promotes better flow by allowing a small expansion of the exhaust gasses. The 'bomb' also acts as a pre-muffler taking the edge off of overall sound levels. Includes clamp-on mounts for the stock heat shield.

For FMF mufflers only

Ships in 3-5 business days
$249.95
KLR650 '84 - '07

The FMF Powerbomb is a four stroke header pipe unit that has a unique bulge precisely located in the header system. A "pre-muffler" of sorts, the Power Bomb actually lowers sound output because it creates more surface area to absorb the sound medium (exhaust). The surface area of the perforated core lets the sound exit into the absorbing material (steel wool packing) and then allows the air to expand, cool and ramp back up with the higher pressure air. The result? The FMF Powerbomb is instrumental in reducing the decibel level on any four stroke and because of the expansion and contraction on exhaust through the system, the flow has been increased by nearly 10%. That means more power throughout the range.

Features:

  • Tuned for bottom to mid performance
  • Powerbomb headers are the front runner in performance headers
  • Designed for full service access to oil filter
Choose Year
Backordered: Waiting for stock from suppliers to fulfill orders placed on or after December 2023
$249.95
XR650L '93 - '25

The PowerBomb header promotes better flow by allowing a small expansion of the exhaust gasses. The 'bomb' also acts as a pre-muffler taking the edge off of overall sound levels.

Optional Heat Shield Strip will protect your airbox from the close proximity of the hot head pipe.

Backordered: Waiting for stock from suppliers to fulfill orders placed on or after April 2021
$324.95
DR650 '96 - '25

The PowerBomb header promotes better flow by allowing a small expansion of the exhaust gasses. The 'bomb' also acts as a pre-muffler taking the edge off of overall sound levels. Includes clamp-on mounts for the stock heat shield. We recommend Anti-Seize on exhaust fasteners.

Add Anti-Seize
Add Exhaust Gasket
Ships same business day
$249.95

Our very own high flowing head-pipe is made in the USA using a CNC (computer numerically controlled) mandrel bender for an absolute perfect fit. It is a high quality 3-piece welded two into one, stainless steel head-pipe.

  • Primary tubes: 1-1/4" diameter
  • Collector tube: 1-3/4" diameter
  • Secondary tube: 1-5/8" diameter

The SS Pro-Flow is a tested upgrade over stock that will bolt right on with no modifications needed. 

We recommend a new exhaust gasket when installing your new SS Pro-Flow.

Pre-Order promotional pricing for a limited time.

Add Exhaust Gasket
Add Anti-Seize
Pre-Order: ETA May 2024
$334.95
$314.95

Our very own high flowing head-pipe is made in the USA using a CNC (computer numerically controlled) mandrel bender for an absolute perfect fit. It is a high quality 2-piece 18 gauge stainless steel head-pipe with 1 3/4" outer diameter, compared to the stock outer diameter of 1 1/2".

The SS Pro-Flow is a tested upgrade over stock that will bolt right on with no modifications needed. It is compatible with any combination muffler/mid-pipe, as well as all motor configurations of the DR650 '96-current.

Includes a stainless steel band clamp for the mid-pipe joint, clamp-on heat shield mounts, to use with stock heat heat shield and a stainless steel flange at the exhaust port mount. We recommend a new exhaust gasket when installing your new SS Pro-Flow.

Add Exhaust Gasket
Add Anti-Seize
Add Muffler Gasket
Ships same business day
$259.95
Universal fit. May require additional adjustment or modification.

The Chilly Exhaust Heat Shield is the most effective heat shield on the market. The innovative three piece design consists of a top shield attached to 2 rails with rivets and spacers. This reduces the contact area and slows down heat transfer. They have incorporated a patented, insulated reflective blanket on the underside of the shield to reduce radiant heat transfer. The included stainless steel clamp makes it simple to install.

We highly recommend a heat shield if you run soft luggage without hard racks.

FEATURES:

  • Solid Top Shield - The logo is laser etched and there are no cutouts on the top shield. This prevents radiant heat from passing straight through to your luggage.
  • Side Rails - By isolating these with spacers the heat conductive surface area to the top shield is reduced and slows down heat transfer.
  • Radiant Heat Shielding - The reflective insulated blanket on the bottom of the shield is the real hero. This patented material won't be found anywhere else in the motorcycle industry. 
  • Stainless Steel Clamp - Slots have been provided in the side rails to make installing as easy as it gets.
  • Brushed Aluminum - Lightweight and looks nice.

DIMENSIONS:

  • Length 7.5" (190mm) x Width 3.5" (76mm) x Height 1" (25mm)
  • Clamp fits any exhaust 3.5" - 5.5" (89mm - 149mm)
Ships same business day
$38.95
Universal fit. May require additional adjustment or modification.

Have you lost your stock heat shield, or need one on an aftermarket head pipe? FMF makes this nice unit that includes clamps, heat shield with the FMF logo and button head screws to hold it on. We recommend Anti-Seize on all exhaust fasteners.

Add Anti-Seize
Ships same business day
$34.95
Universal fit. May require additional adjustment or modification.

Don't get burned! Giant Loop's ingeniously simple and effective exhaust shield protects bags and bodywork from heat damage. The Hot Springs Heat Shield helps avoid the meltdown, preventing bags and side panels from touching your bike's exhaust. It's the lightweight, universal heat problem-solver for virtually any motorcycle exhaust system. Backed by a Limited Lifetime Warranty.

Ships same business day
$29.95
Universal fit. May require additional adjustment or modification.

If your aftermarket exhaust is missing heat shield mounting points for this is the easy fix you’ve been waiting for. Includes one stainless steel mounting bracket with M6 threaded nut, and one stainless steel hose clamp.

Fits exhaust approximately 1.1inch-2inch diameter. Trimming may be required for smaller diameter exhausts.

Ships same business day
$14.95
Universal fit. May require additional adjustment or modification.

Adhesive heat shield for your new side panel plastics to protect it from the heat of your muffler.

Depending on your application and preferences, more than one heat shield may be useful.

Dimensions: 2"x3'

Ships same business day
$14.95
DR650 '96 - '25

By popular demand. This is our own mid-pipe adapter kit for the GSXR exhaust cans. The unique design works with both 3-bolt Hayabusa and 4-bolt GSXR mufflers. It features all stainless steel TIG welded construction with a laser cut adapter. A spring tensioned slip joint allows for heat expansion. A stainless steel hanger strap allows it to attach to your original muffler mounting point. No welding is required. Mid-pipe length is approximately 17" long.

This mid-pipe does not require a stock muffler joint gasket when used with the stock headpipe, the SS Pro-Flow, or the FMF headpipe, eliminating the hump in flow.

Don't forget a fresh seal ring gasket that fits between your muffler and mid-pipe adapter.

Add Anti-Seize
Add Muffler Seal Gasket
Add Spark Arrester
Ships same business day
$219.95
Universal fit. May require additional adjustment or modification.

The latest in muffler packing technology. Spec 31 high performance muffler packing resists breakdown up to 1400°F, is universal, and is easy to install.

  • Kits come in 2 lengths - 15" and 19"
  • Pillows can be trimmed to length to fit different mufflers.
  • Includes a cap stuffer to fill packable end caps.
Choose Size
Ships in 3-5 business days
$40.95
Universal fit. May require additional adjustment or modification.

Re-pack your silencer with this pro-quality, three layer packing system and restore lost power and sound control.

Kit includes:

  • 60"x20"x1⁄4" glass mat.
  • 7"x20" stainless wool
  • 8"x20" stainless mesh
  • Twelve 3⁄16" rivets
Ships in 3-5 business days
$34.95
WR250R '08 - '19 WR250X '08 - '19

The EVO R series draws on our rich heritage of making power. Offered for various off road MX and sport ATV models, the EVO R is a tried-and-true series that will save weight, add noticeable performance gains and sound tremendously better than stock.

  • Hard anodized oval shaped aluminum muffler
  • TIG welded reinforced muffler bracket(s)
  • 304 stainless steel mid pipe
  • Red powder coated stainless steel end tip
  • Lighter than stock exhaust system
  • Huge horsepower and torque gains
  • Sleek muffler design allows for maximum clearance
  • Removable screen-type spark arrestor included
  • Handmade in the USA
  • 1 Year Limited Manufacturer’s Warranty
Ships same business day
$373.95
XR650L '93 - '25 XR600 '85 - '00

The EVO R series draws on our rich heritage of making power. Offered for various off road MX and sport ATV models, the EVO R is a tried-and-true series that will save weight, add noticeable performance gains and sound tremendously better than stock.

  • Hard anodized oval shaped aluminum muffler
  • TIG welded reinforced muffler bracket(s)
  • 304 stainless steel mid pipe
  • Red powder coated stainless steel end tip
  • Lighter than stock exhaust system
  • Huge horsepower and torque gains
  • Sleek muffler design allows for maximum clearance
  • Removable screen-type spark arrestor included
  • Handmade in the USA
  • 1 Year Limited Manufacturer’s Warranty
Ships same business day
$373.95
KLX250S '94 - '14 KLX300SM '21 - '23

The EVO R series draws on our rich heritage of making power. Offered for various off road MX and sport ATV models, the EVO R is a tried-and-true series that will save weight, add noticeable performance gains and sound tremendously better than stock.

  • Hard anodized oval shaped aluminum muffler
  • TIG welded reinforced muffler bracket(s)
  • 304 stainless steel mid pipe
  • Red powder coated stainless steel end tip
  • Lighter than stock exhaust system
  • Huge horsepower and torque gains
  • Sleek muffler design allows for maximum clearance
  • Removable screen-type spark arrestor included
  • Handmade in the USA
  • 1 Year Limited Manufacturer’s Warranty
Choose Year
Add Anti-Seize
Please contact us for availability information
$373.95
XR650L '93 - '25
  • The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available
  • Constructed from aircraft grade aluminum and high strength stainless steel
  • Sound output 96dB
  • 8 pounds lighter than the stock muffler
Add Anti-Seize
Backordered: Waiting for stock from suppliers to fulfill orders placed on or after May 2021
$449.95
KLR650 '84 - '07
  • The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available
  • Constructed from aircraft grade aluminum and high strength stainless steel
  • Sound rating 96dB
  • Much lighter than the stock muffler
Choose Year
Please contact us for availability information
$449.95
WR250R '08 - '18 WR250X '08 - '11
  • The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available
  • Constructed from aircraft grade aluminum and high strength stainless steel
  • Sound output 96dB
  • 8 pounds lighter than the stock muffler
Backordered: Waiting for stock from suppliers to fulfill orders placed on or after October 2023
$449.95
  • Powercore silencers give your ride a deep works-like tone while providing optimum, dyno-tuned performance
  • Silencer body is constructed of 6061-T6 grade aluminum with machined mounts and a clear anodized finish to bring out the shine
Ships same business day
$179.95
KDX200 '95 - '06 KDX220 '95 - '06
  • The most popular 2-stroke silencers in FMF's arsenal
  • The elliptically shaped bodies with perforated core perform well in any condition
  • Equipped with a Performance Flow end cap and nickel-plated front stinger
Ships in 3-5 business days
$184.95

The Powercore 4 spark arrestor muffler. FMF developed the Powercore 4 to increase the horsepower and torque throughout the entire power curve. Highest quality packing for long life. Removable spark arrestor included. Louder than the Q4. Approximately 99db stock or about 94db with optional Quiet Insert installed.

  • Uses long-life muffler packing for increased packing life
  • Forest Service approved spark arrester
Backordered: Waiting for stock from suppliers to fulfill orders placed on or after June 2021
$399.95
DRZ400S '00 - '25 DRZ400SM '05 - '25 DRZ400 '00 - '04 DRZ400E '00 - '08

The Powercore 4 spark arrestor muffler. FMF developed the Powercore 4 to increase the horsepower and torque throughout the entire power curve. Highest quality packing for long life. Removable spark arrestor included. Louder than the Q4. Approximately 99db stock or about 94db with optional Quiet Insert installed.

  • Uses long-life muffler packing for increased packing life
  • Forest Service approved spark arrester
Add Anti-Seize
Add Quiet Insert, FMF
Ships in 3-5 business days
$399.95

The Powercore 4 spark arrestor muffler. FMF developed the Powercore 4 to increase the horsepower and torque throughout the entire power curve. Highest quality packing for long life. Removable spark arrestor included. Louder than the Q4. Approximately 99db stock or about 94db with optional Quiet Insert installed.

  • Uses long-life muffler packing for increased packing life
  • Forest Service approved spark arrester

Delayed stock from manufacturer, please ask for availability.

Choose Year
Please contact us for availability information
$399.95

The Powercore 4 spark arrestor muffler. FMF developed the Powercore 4 to increase the horsepower and torque throughout the entire power curve. Highest quality packing for long life. Removable spark arrestor included. Louder than the Q4. Approximately 99db stock or about 94db with optional Quiet Insert installed.

  • Uses long-life muffler packing for increased packing life
  • Forest Service approved spark arrester

Delayed stock from manufacturer, please ask for availability.

Please contact us for availability information
$359.95

The Powercore 4 spark arrestor muffler. FMF developed the Powercore 4 to increase the horsepower and torque throughout the entire power curve. Highest quality packing for long life. Removable spark arrestor included. Louder than the Q4. Approximately 99db stock or about 94db with optional Quiet Insert installed.

  • Uses long-life muffler packing for increased packing life
  • Forest Service approved spark arrester
Backordered: Waiting for stock from suppliers to fulfill orders placed on or after March 2021
$399.95
  • Constructed of stainless steel with a lightweight allow can
  • Space age internal packing for maximum packing life
  • Hi-Flo modular end cap
  • Internal shape of core uses Hi-Flo technology
  • Enhanced sonic evacuation provides for higher flow and increased power
  • Includes removable spark arrestor
Ships in 3-5 business days
$399.95

The Powercore 4 spark arrestor muffler. FMF developed the Powercore 4 to increase the horsepower and torque throughout the entire power curve. Highest quality packing for long life. Removable spark arrestor included. Louder than the Q4. Approximately 99db stock or about 94db with optional Quiet Insert installed.

  • Uses long-life muffler packing for increased packing life
  • Forest Service approved spark arrester
Backordered: Waiting for stock from suppliers to fulfill orders placed on or after January 2023
$359.95

When designing the PowerCore 4 HEX, they looked at their top of the line products to deliver race-inspired performance at an economical price. The end result is a quality muffler with improved torque, increased horsepower and rugged durability all at a price that won't break the bank.

Features:

  • Overall increase in power and torque.
  • Durable stainless steel and aluminum construction.
  • Space Age internal packing material for maximum longevity.
  • Internal shape of core uses Hi-Flo technology.
  • Enhanced sonic evacuation provides for higher flow and increased power.
  • Includes removable spark arrestor.
  • Can be used with FMF or Stock OEM Header
Ships in 3-5 business days
$399.95
KLX125 '03 - '06 DRZ125 '03 - '10
  • Computer-designed and dyno-tested for every 4-stroke application
  • Hi-Flo end cap boosts all-around performance
  • Optional Quiet Core insert will provide a decrease in sound level if desired
  • Enhanced sonic evacuation delivers a higher flow of exhaust gases, which increases power
  • Feature a screen-type spark arrestor that does not interrupt exhaust flow or performance
  • FMF's exclusive cross-weave internal packing provides longevity and maximum sound dispersion
  • Round perforated steel inner cores make for optimum flow, using hi-flo technology
  • Elliptical aluminum can offers strategic sizing for superior performance
  • A stainless steel mid-pipe mates to the computer-designed rear can for lightweight durability
Ships in 3-5 business days
$269.95

 The Powercore 4 spark arrestor muffler. FMF developed the Powercore 4 to increase the horsepower and torque throughout the entire power curve. Highest quality packing for long life. Removable spark arrestor included. Louder than the Q4. Approximately 99db stock or about 94db with optional Quiet Insert installed.

  • Uses long-life muffler packing for increased packing life
  • Forest Service approved spark arrester
Backordered: Waiting for stock from suppliers to fulfill orders placed on or after March 2024
$399.95

Muffler has superficial marks on the inside, not visible when mounted. Never been installed or used, scratches happened in shipping. Sold as is.

When designing the PowerCore 4 HEX, they looked at their top of the line products to deliver race-inspired performance at an economical price. The end result is a quality muffler with improved torque, increased horsepower and rugged durability all at a price that won't break the bank.

Features:

  • Overall increase in power and torque.
  • Durable stainless steel and aluminum construction.
  • Space Age internal packing material for maximum longevity.
  • Internal shape of core uses Hi-Flo technology.
  • Enhanced sonic evacuation provides for higher flow and increased power.
  • Includes removable spark arrestor.
  • Can be used with FMF or Stock OEM Header
Ships same business day
$399.95
$299.95
  • Overall increase in power and torque.
  • Durable stainless steel and aluminum construction.
  • Space Age internal packing material for maximum longevity.
  • Internal shape of core uses Hi-Flo technology.
  • Enhanced sonic evacuation provides for higher flow and increased power.
  • Includes removable spark arrestor.
  • Can be used with FMF or Stock OEM Header
Backordered: Waiting for stock from suppliers to fulfill orders placed on or after April 2021
$399.95
KDX200 '95 - '06 KDX220 '95 - '06

Straight-through design of the spark arrestor canister and the Performance Flow stainless steel end cap ensure strength, durability and unrestricted power.

Ships same business day
$199.95

DG Performance exhausts help your engine breathe better, resulting in increased throttle response, power and torque.

The V2 Series Slip-On muffler features:

  • Lightweight aluminum body
  • Stainless steel inlet tube
  • TIG welded components
  • Great new look

Standard sound level is approximately 98 db and quiet core inserts are available separately.

This Lightweight Slip-On weighs approximately 5.5 lbs and bolts directly to the stock headpipe.

It is equipped with a US Forest Service-approved spark arrestor.

Select Bike Model
Ships same business day
$424.95

The DG RST (Reduced Sound Technology) muffler is the quietest DG muffler and is designed especially for dual-sport machines (Just 89db @ 3200 RPM). A new baffle design dissipates sound waves reducing noise output in a very efficient manner. This new design also stretches out the time between muffler repacks. Included is a Stainless Steel mid-pipe, USFS Approved Spark Arrestor and a new Aluminum end cap.

You may want to consider a new exhaust gasket that goes between the header and the muffler.

Add Exhaust Gasket
Ships same business day
$459.95

Body is made from lightweight 6061 T-6 brushed aluminum and the end cap and intake tube are stainless steel. Silencers include wire-meshed spark arrester that can be removed for closed-course racing. Optional end caps allow fine-tuning of power delivery for different types of riding and terrain.

Choose Bike Model
Add Anti-Seize
Please contact us for availability information
$411.95
Africa Twin (CRF1000L) '16 - '25

Ultra-Light, Race Inspired Titanium Muffler

Available in slip-on/bolt-on and full system configurations depending on the application

  • Titanium body
  • Spring retained inlet
  • 2.25" Spiral perforated core
  • Billet CNC machined aluminum outlet
  • Carbon fiber end cap
  • Tunable for tone with P1 and P1-X insert options
  • Stainless steel headers/mid-pipes where applicable
  • Made in the USA
Please contact us for availability information
$589.95
CB500X '13 - '15

Stainless steel can and carbon fiber end cap.

  • Trapezoid-shape muffler
  • Maximized internal volume
  • Straight, single core baffle
  • Low-volume sound insert capable

All Street Series systems are Slip-on / Bolt-on applications that do not require tampering with the vehicle's emissions control system.

Choose Year Range
Please contact us for availability information
$463.15

The RS-2 is a potent and versatile design that evolved from their original TRC, engineered to provide increased power delivery. With a different pyramidal shape that features increased volume, the RS-2 is a quieter system with a larger core — and it offers the added bonus of outstanding performance in a value-priced package.

  • Diamond-shaped sleeve
  • Large core and increased muffler packing volume means quieter operation
  • Stainless steel cone end-cap
  • Stainless steel tail-pipe
  • USFS Approved spark arrester included
  • 6.8 lbs lighter than stock

We recommend Anti-Seize on exhaust fasteners

Add Anti-Seize
Add Muffler Gasket
Ships in 3-5 business days
$508.95

Yoshimura has paired their legendary RS-2 exhaust pipe with the Kawasaki KLR 650. The KLR 650 has literally been ridden around the world, and now with our fire-breathing RS-2 slip-on exhaust system, you can do it faster - and in style!

Assembly comes complete with:

  • Stainless muffler sleeve
  • Stainless steel mid-pipe
  • All installation hardware
  • Detailed instructions
  • Trick, turn-down tip inserted in the endcap
  • Dual stainless steel mounting brackets
  • High-quality chrome steel exhaust springs with spring vibration dampers with the Yoshimura logo molded in
  • Plastic end cap to plug the pipe during washing
  • Super-trick spring pulling tool
Please contact us for availability information
$449.95
KLX250S '09 - '20 KLX300 '21 - '25 KLX300SM '21 - '25

Since Kawasaki brought back the popular little KLX250 with updated fuel injection, Yoshimura brought back an updated RS-2 slip-on that now incorporates an o2 sensor that accommodates the new fuel injection technology on the KLX. All of that with added power, torque and that distinct Yoshimura exhaust note.

Entire unit is proudly made in the good old US of A to boot!

  • Diamond-shaped sleeve
  • Large core and increased muffler packing volume means quieter operation
  • Stainless steel cone end-cap
  • Stainless steel tail-pipe
  • 2.8 lbs. lighter over stock unit.
  • Comes with USFS Approved Spark Arrestor

The product that you are purchasing is designed and intended for closed course competition use only and is labeled as such, i.e. Yoshimura "RACE SERIES." Yoshimura RACE SERIES products are neither designed nor intended for use on PUBLIC ROADS or LAND. Such use is prohibited by Federal and State regulations.

Add Anti-Seize
Add Muffler Gasket
Ships in 3-5 business days
$569.95
DRZ400SM '05 - '25 DRZ400S '00 - '25

Yoshimura RS-3 that will slip right on to your stock header. Made by hand to the highest quality standards using the championship-winning racetrack experience and their extensive R&D facility ensure these pipes perform and will last.

Both full systems and slip-on mufflers include 96 dB sound insert/USFS approved spark arrestor installed in the muffler. Mid-pipe is stainless steel while the stainless RS-3 oval muffler design has a slim profile with an aluminum end cap.

Works on OEM header only!

Add Exhaust Gaskets
Ships in 3-5 business days
$479.95
Africa Twin (CRF1000L) '16 - '25

The Yoshimura RS-4 is a proven choice to improve the performance and sound of the Africa Twin.

Removing the stock muffler saves over 4 pounds and makes the 988cc parallel twin engine growl!

  • Oval-ellipse shaped sleeve
  • Yoshimura's Works Finish for increased durability & adventure friendly design
  • Features an integrated inlet heat shield design for a seamless transition with the stock heat shield
Ships in 3-5 business days
$529.95
KLX140(R) '11 - '25 KLX140L(RL) '11 - '25 KLX140G(RF) '17 - '25
  • Dual-muffler design exhaust system
  • Achieves maximum performance, mass centralization, and rider usability
  • Systems feature three-stage tapered headpipe for the best power gains, better throttle response and power delivery
  • Vertical divider splits the exhaust gases more evenly for smoother flow to the mufflers for better mid-top power and throttle response
  • Parallelogram-shaped muffler bodies increase muffler volume over the stock system for even crisper throttle response and reduced noise levels
  • Systems meet AMA noise sound regulations right out of the box (AMA 2-Meter Max and Amateur 94 dB sound compliant)
  • Muffler inserts are tunable to adjust power delivery and noise level
Please contact us for availability information
$499.95
XR650L '93 - '21

The RS-2 is a potent and versatile design that evolved from our original TRC, engineered to provide increased power and power delivery. With a different pyramidal shape that features increased volume, the RS-2 is a quieter system with a larger core - and it offers the added bonus of outstanding performance in a value-priced package.

  • Diamond-shaped Stainless steel sleeve for increased durability.
  • Large core and increased muffler packing volume means quieter operation
  • Stainless steel cone end-cap
  • Stainless steel tail-pipe
  • Weight: .39 lbs lighter than stock configuration
  • USFS Approved spark arrester included
Ships in 3-5 business days
$448.95
Universal fit. May require additional adjustment or modification.

This Quiet Insert comes stock in all new FMF Q4 mufflers. If you lost yours, this is the replacement you need.

It will fit Q4, Q4 Hex, Powercore and Powercore Hex mufflers.

It will reduce the sound rating of the Power Core models, from about 99db down to about 96db.

Please choose the correct Insert for your muffler. If you are unsure of the year that your muffler was manufactured you can easily identify visually which insert you will need.

Pre '21Installs using one small screw
'21-CurInstalls using a spiral retaining ring
Choose Muffler Year
Add Anti-Seize
Ships same business day
$39.95
DR650 '96 - '25

The ProCycle SS1 muffler was designed so this existing spark arrester will fit right in. This is also the same unit that is often adapted to the GSXR 40F0 muffler. It fits FMF exhaust as well.

Add Anti-Seize
Ships same business day
$29.95