Performance Aluminum Exhaust System For 1999-2014 HONDA TRX400EX USFS APPROVED SPARK ARRESTER VER 2.0

New performance exhaust system VER 2.0

UPGRADED MUFFLER BODY AND WELDS

Increase your power and torque with a simple bolt on system.

Dyno tested for ultimate air flow and performance.

Dyno results show power numbers on a stock TRX400EX, a TRX400EX with the exhaust on but not tuned and then the exhaust on with proper jetting and tuning done by a professional power sports shop. 

TESTED IN XC & GNCC RACING

TUNING IS HIGHLY RECOMMENDED FOR THIS KIT!

RECOMMENDED JETTING ON STOCK MOTOR:

45 PILOT

148 MAIN

Kit includes:

1x aluminum muffler with USFS approved spark arrester and biggest insert installed

1x header pipe and gasket

2x different diameter inserts (the smaller the insert the quieter it will be)

1x allan key set

1x flag

1x key chain

1x sticker