Originally Posted by JAdamz
I'm pretty confident that the GT is slightly louder than the Performance exhaust. It also drones around 2-3k RPMs, which I don't think is the case with the Performance exhaust.
That said, I have a GT on my car and love it!
Do you have a sound clip? I have been having a really hard time finding the GT on an m3 without anything else done too it on YouTube.