I bought TT's stainless 2.5" with 2 Borla mufflers for my G60 and just got it on this weekend. The sound is incredible. Not to loud, nice deep rumble. Recommend it for anyone looking for a new exhaust. I had the Eurosport exhaust before (PO) with 1 resonator and muffler and thought it was way to loud. I can actually here my G60 better now!!! Just thought I'd share.