if you look at my mods im running a sleeper. i cant do that know more i need a cheap pipe were and how much can i get one. also i need a silencer for it to pass the law of 98db

 

I've heard good things about HMF, not sure how many db they put out though. If you check out the dirt wheels website. they used to have a 400ex Pipe shoot out, it had db readings, and hp readings.

 

I remember that shoot out, and one of the things they say (and I strongly agree with) is that you should buy the one you think looks the best because the performance of all the aftermarket pipes are so close you couldn't tell the difference. I personally like the pro circuit, but I don't have to deal with sound regulations (it is a loud one).

 

I have the HMFs/o and it is LOUD but they make a quite core for it that may help. they claim it lowers it down to about 96db.