Originally Posted by AlexRaymond19

Got a test drive in today! I was shocked with how much quieter the exhaust sounds now after the M370 install... It was almost disappointing :-( But i finally realized what was going on. On the outside the exhaust sounds the same. I figure it had something to do with the resonant frequency inside the car being changed from the new manifold. It sounds so much smoother now under load. Literally sounds like im breaking into lambo territory with the exotic sound it makes. I did a few pulls, and it felt like the the bottom end was a lot beefier