I just sold my 01 400ex and got a 03 raptor. It is not near as quick as my 400 was and I was currious what can I do to get some quick hp? Do you usually put different gears on it? I am planning to put an exhaust on it, and was thinking about getting another yoshi, is there another exhaust for close to the same money that is better? Thanks for the time.

 

check out the LRD Pro4R. you must've had some serious work done to your 400 for it to be quicker than the raptor. when I was looking to buy my 02 raptor, i test rode both machines stock, and there was no comparison. the raptor blew the EX away.

quick horsepower? remove the airbox lid and get a pro-flow filter mount system and K&N, or Uni filter. Buy a GYTR jet kit, and get an exhaust.