atvdude
05-27-2006, 05:01 AM
I have heard alot of good things about HMF Exhausts. I would like to buy a slip on for my 06 trx450er with HRC kit installed. My strict WNYOA Series up here in NY requires 99 decibals or less to pass sound check. Is there any way i can run a HMF slip on that will pass inspection? QRS is to loud but will the race series with quiet core pass??? And also what would be a good baseline jetting to start with with the hrc kit and your slip on and an aftermarket foam filter system? pilot /main/leak jet and needle clip position(HRC Needle). Any help would be greatly appreciated.