I installed my mbrp cat back today and all i can say is wow. The install was super easy,(took me all of 30 minutes )and My car sounds amazing! Between the mbrp cat back and atp dp my exhaust is unreal. Its quiet enough to not get harrassed/pulled over under light load/normal driving. Under WOT/hard driving this thing sounds like a race car it pops burbles and makes every noise i feel a turbo car should make including turbo back fires on decelation. I would recommend this set up to anyone wanting a LOUD aggressive exhaust.