Mine lost the rumble at idle it had stock when i replaced the stock muffler with the Magnaflow...thanks to NORCAL SS for sharing the muffler pn...nothing beats a catback exhaust for $100...true 3.5" exhaust all way back.
It actually gave it some ponies i could "sorta feel"...it also sounds way better at any throttle, especially outside, without any drone inside!!...before it would sound like a blow dryer.
I decided to keep the resonator in there to take care of the long tubes w no cats...