I just had a MAGNAFLOW muffler and tip installed and it sounds awesome!!!!! The muffler is part #11226, 2 1/2 inch. SI/SO. It sounds stealthy, quiet at start up but when you jump on the pedal it has a good tone, throaty especially between 2-3000 rpms. The tip I used is 2.5 inlet and 3.5 outlet, slash cut. I will post pics soon.