I heard about CT racing having a pretty good pipe but i can't find many reviews or information about them Do any of you have a ct slip on or know someone that does do they like them???????

 

According to ATV Sport Mag, the June issue, they tested 18 pipes and mufflers for the 400EX on a dyno and the best pipe combo was a Curtis Sparks Racing, followed by White Brothers. Each combo produced a 2.5 hp gain at 2500 rpm and almost 2 hp at the top end. They did not test a CT pipe combo. Hope this helps.