Word of advice, don't buy those. I am regretting it. At first, the sound was good. Not too loud, not too low. But after they're broken in, I hate them. I am looking to copy cat mrbmwx5 and get a set of oem 4.8is mufflers. Don't get me wrong, if loud is what you want, then go for it. I just hate how loud they've broken into. Also, when driving on Ms mode, you get a lot of backfire popping sound on deceleration. Kinda sounds like your TC is going, but its actually the mufflers. I have them set up with CAI, X-pipe and Dinan Stage 1 Trans and Engine software. It's at a point where my kids tell me "daddy thats noisy".

Anyone selling 4.8is exhaust in NYC or near... I'm buying!

__________________
2002 3.0i (DOB: 5/2002)
Mods:
A few...