Tractor-like bottom end pull, thicker midrange and rugged 18-gauge steel construction.This Part Fits:YearMakeModelSubmodel1999-2021YamahaYZ250Base2016-2021YamahaYZ250XBase

The MX14 offers increased traction/drive-grip on starts, straights and when exiting corners, with improved braking performance in harsh conditions. Features optimized tread blocks to more effectively penetrate and scoop sandy/muddy terrain, thanks to the...

The MX14 offers increased traction/drive-grip on starts, straights and when exiting corners, with improved braking performance in harsh conditions. Features optimized tread blocks to more effectively penetrate and scoop sandy/muddy terrain, thanks to the...

The Big Guns Vortex Quiet Insert brings you the perfect blend of on-trail performance and quiet comfort. Designed to slip seamlessly into your Big Guns exhaust, the Vortex Quiet Insert dramatically reduces noise output without restricting exhaust flow or...

This end tip will not fit older style Big Gun mufflers like EVO X, EVO Race & EVO Limited

Big Gun exhaust springs are affordable and easy to store in a tool bag, storage compartment or in any tool box. You never know when or if you'll need a replacement, or if you need it to fix something else.

Big Gun exhaust springs are affordable and easy to store in a tool bag, storage compartment or in any tool box. You never know when or if you'll need a replacement, or if you need it to fix something else.

From backwoods trails to the open desert, many riding areas require the use of a spark arrestor. Check your local laws and regulations to see if you need a spark arrestor, and if so, look no further. Our spark arrestor is compatible with all Big Gun...

If you are looking to swap out the stock CDI box, the Big Gun Over Rev Box is an affordable alternative to highly-priced OEM replacement boxes. It increases the overall RPM limit over the stock box and advances the timing curve.

Packing is one of the most important elements of your exhaust. All Big Gun™ mufflers are packing-style mufflers, which means they eventually require maintenance. Ensuring you have an appropriate amount of packing will prolong the life of the exhaust.

EVO M series has been a Big Gun staple for over a decade. Though there have been changes and improvements over the years, the goal has always been to produce noticeable performance gains. The deep and throaty tone is sure to make even a grown man feel...

EVO M series has been a Big Gun staple for over a decade. Though there have been changes and improvements over the years, the goal has always been to produce noticeable performance gains. The deep and throaty tone is sure to make even a grown man feel...