KLX250S: Exhaust

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

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

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.

• 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

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.

• 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

• Reduce exhaust sound by one to six decibels
• Options for DG V2 & RST and for the older "O" & "R" Series mufflers
• Easy installation; remove rear end cap and place Quiet Core in front of the spark arrestor
• Smaller diameter inserts are quieter but more restrictive; larger inserts are less restrictive but louder
• 1" Not recommended for RST
• Each size is sold separately

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.

This gasket seals the joint between the head pipe and muffler. These gaskets are easily damaged when removing the original muffler. Get a fresh one now to ease installation of your new performance muffler.

Protect your head pipe from rock damage. This stainless steel spine clamps to your head pipe to add a layer of protective armor between your vulnerable pipe and those nasty rocks or logs. Fits the stock headpipe. Will fit the FMF head pipe with the addition of larger clamps.

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.

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)

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.

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.

This universal heat shield provides a great look at a great price.

• Fits all 1-1/2" - 2-1/8" Pipes
• Measures 7-1/4" x 3"
• We recommend Anti-Seize on all exhaust fasteners.

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.

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

A highly refined blend of aluminum, copper and graphite lubricants. Use during assembly to prevent galling, corrosion and seizing due to weathering or chemicals. Anti-Seize assures easier disassembly. Temperature range: -60°F to 1600°F (-50°C to 870°C). Salt, corrosion and moisture resistant – ideal for marine use. Meets Mil Spec #907E.

Replacement Exhaust Pipe Retention Spring

• This swivel spring replacement will work on nearly any exhaust system with a similar spring.
• Made from stainless steel, and has a high temp silicon sleeve to protect exhaust component finish.
• Made by Akrapovic, 60mm size, SOLD EACH

• Available in 52mm or 58mm lengths
• Kit contains two stainless steel exhaust swivel springs
• Free-floating mounting hooks to avoid breakage

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

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'

Precision cut from heavy gauge material.

Extremely durable design.

Push/Pull design for hard to reach places.

Soft but durable PVC coated handle.