The Sport muffler has a deeper, lounder sound over the stock G37 one. I can hear the difference vs. the stock 370z muffler from inside, even with the windows up. There is no difference at idle but at normal driving and higher RPM's it has a very nice sound.
As I said, it probably doesn't make good economic sense for most because of the cost. I just wanted a better sound for daily driving without changing out the entire exhaust.
I am new to the forum............I will make a video but I made need help getting it uploaded.
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