I'm looking for an exhaust that is under 100 decibals. I also want one that will give me a boost in top end more than anything. Any thoughts? I was thinking of maybe HMF quiet racing pipe?

 

Yea HMF has one and I think FMF has one also not sure about FMF. I know that HMF are good exhausts

 

The FMF Q series is a nice muffler. I think it is supposed to be 93, but maybe 96. It has a nice tone. I am not sure if it is topend, or low end. My friend has one on a basically stock 400ex, and he likes it.

 

get a hmf sport series, their pipes are around 104-105 dbs, but u can get the quiet core for 20 bucks and be aroudn 96-97 in seconds. so if u ride where u can be loud u can be or if not u can be decently quiet and the quiet core takes away very minimal power from the pipe. i have hmf's on all my sstuff and will be getting a full system for my 400ex soon. overall a great pipe that can be quiet or loud, very good quality(one of the best) adds the best power besides sparks and is decently cheap