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Exhaust

Sub-Category
Model
Made In

Full System

Exhaust System, Big Gun EVO-R

CARB   Made in USA WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
KLX300R '20 - '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
Please contact us for availability information
$626.95

Gasket

Exhaust Gasket - Muffler Joint

WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
KLX300R '20 - '26

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.

Ships same business day
$15.95

Headpipe

Headpipe, FMF Powerbomb

EPA   Made in USA WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
KLX300R '20 - '26
  • 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
Ships in 3-5 business days
$249.95

Muffler

Muffler - Slip-On, Big Gun EVO-R

CARB   Made in USA WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
KLX300R '20 - '21

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
Add Anti-Seize
Please contact us for availability information
$373.95