ive got a k&n air filter with the pre filter set up with the stage 1 jet kit for the carb and a 13 tooth front sproket now i want a full exhaust system, (pipe and header) which one do you all recommend that will give me the most power i know i will have to re jet the carb after i put the exhaust on but thats no problem just give me some input on which exhaust system would you use thanks

 

I dont know why but I have always liked FMF....I have the FMF Power Bomb Header and Titanium Factory 4 pipe... sounds good and gave a noticable amount of power gains..... It might help to know what bike you have.....

 

sorry about that i have a 04 trx450r already got a filter and jet kit and geared it down a pipe is next

 

Curtis Sparks

 

I would go with the Pro4 or Pro4r LRD system and for even more pwr get the Power up kit. This system is proven, easy to install, easy to change the packing, and much more durable that it's competitors systems. a bit heavier, a bit more expensive, but a quality and proven pipe.

 

Sparks and LRD are both proven on the 450r's.