Hand-pounded seams for superior flow, lighter gauge metal for the Factory sound.This Part Fits:YearMakeModelSubmodel2022YamahaYZ125Base

Tractor-like bottom end pull, thicker midrange and rugged 18-gauge steel construction.This Part Fits:YearMakeModelSubmodel1999-2021YamahaYZ250Base2016-2021Yamaha

The most copied pipe in the world and #1 best seller for FMF, the Fatty broadens the powerband and provides significant increases throughout.This Part Fits:YearMakeModelSubmodel2002-2018YamahaYZ85<

Keep your exhaust connection firmly in place with the Big Gun Long Exhaust Spring. Its durable stainless steel construction is built for repeated use, while the solid and swivel hooks provide a...

Make your Big Gun exhaust USFS-approved for forestry use with this screen-type spark arrestor. Designed to work with Big Gun Exhaust Systems except EXO-R Mufflers, it provides an easy way to meet...

Push your Honda CRF or XR engine further with the Big Gun Rev Box, which raises the overall rev limit to 10,000 RPM and uses an advanced timing curve to enhance high-RPM performance. It’s a simple...

Keep your Big Gun exhaust performing at its best with the Big Gun 15 Inch Standard Packing Kit. The high-temp packing material helps maintain proper noise levels while preserving the power gains your...

Unleash stronger performance from your Kawasaki KLX 110 or Suzuki DR-Z110 with the Big Gun Evo M Series Full System Exhaust. TIG-welded 304 stainless steel head and mid pipes pair with a lightweight...

Get more out of your 2000-24 Honda XR or CRF with the Big Gun Evo M Series Full System Exhaust. The lightweight system helps reduce overall weight while its TIG-welded 304 stainless steel head and...

Big Gun EVO R Series Slip-On Exhaust for Honda XR 600 and XR 650L models delivers a noticeable performance upgrade without the weight of the stock exhaust. Increased horsepower and torque help your...