Big Gun Rev Box Honda Trx450 2004-2005

Big Gun Rev Box TRX450 Hi-Rev (Fits 04-05) Adds up to 4 horsepower once snapped in. Comes ready to install and go. Our Standard over rev box allows RPM to rev out 1000 RPM higher than stock while advancing the timing for a bit more torque on the bottom end. This Hi-Rev box goes to 1750 over stock. This is some serious performance once snapped in! .

Applications:

• 2004 - 2005 Honda TRX450R