BIG GUN Exhaust 09-1432 EVO R Slip On for 1999-14 Honda TRX400EX / TRX400X NEW

The Big Gun 09-1432 (M2) EVO R Slip-On Exhaust is a dedicated racing exhaust designed for the Honda 400cc sport ATV class. It is widely used to replace the heavy, restrictive stock muffler to improve throttle response and top-end power.

Vehicle Fitment List

This part number is specifically engineered to fit the following models:

• Honda TRX400EX Sportrax: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008

• Honda TRX400X: 2009, 2012, 2013, 2014

Key Product Features

The Big Gun EVO R Slip-On is built for weight savings and competitive performance.

• Construction: Hard-anodized oval aluminum muffler with a 304 stainless steel mid-pipe.

• Performance: Provides an estimated 4–8 horsepower increase depending on other engine modifications.

• Clearance: The slim oval design is specifically shaped to avoid interference with the rear brake caliper during full suspension compression.

• Spark Arrestor: Comes with a removable USFS-approved screen-type spark arrestor.

• Sound: Produces a deep, aggressive tone, typically measuring between 96–98 dB.