big gun full system k&n filter with outer wear and a vented air box lid with a dyno jet kit, thats whats goin on my 400ex next week.......

 

Hey i ride a 426EX and i have a K&N filter and a full system Big gun (and a lot more done) that is a good setup there.


426EX Rider

 

It's good if you like it as loud as He11! Or you can get the quiet version and that's not too bad.

 

curtis sparks x-5!!!!and a kandn filter with the sparks foam outerwear!!

 

Sparks X-5 has great power increases but it's way louder than what your asking for.

 

Hey the Pro Circuit silencer is not the best pipe look into curtis sparcks big gun or yosimira

 

I have to keep the nosie level down......... I ride around houses mostly but sometimes got out on the trails and the guys i ride with don't really like the loud pipes that some guys put on, so i want to keep the noise level down

Thanks.