unbolt your exhaust after the header and thats what it will sound like....it shakes everything and is damn annoying, but i guess if you like real loud obnoxious sounds and the car barely moves=civics....then it will sound sweet
A forum community dedicated to Mazda 3 and all Mazda vehicle owners and enthusiasts. Come join the discussion about MazdaSpeed performance, modifications, classifieds, troubleshooting, maintenance, and more!