Yes you will incur rasp on a stock system w/o a cat. removing the resonator is the cheapest way to sound but then you will incur drone. I put a bullitt muffler inplace of my stock res and the sound turned out perfect. I also have a high flow cat with SHO Shop y-pipe.


-'96 SE MTX 3L -'98 SVT 1,173 of 6,535 -'05 Mazda 6s, loaded, g/f's ride -Need a 96-00 manual on CD? PM or email me