You should buy the magnaflow cat-back and then dyna mat the trunk just under that peice that pulls up to reveal our flat tire kit. lay one layer of dynamat on the underside of that it sits exactly the same and will cancel any resonance you would hear from the exhaust.

also it improves road noise.

Dont play more than you have to.

Blot-On Bolt-Off it is the way to go.

Justin