Can't find nothing online with the sound of stock G37 coupe with only FI traditional exhaust with the new X pipe with 18" resonators only, if I do, it has HFC or intakes etc or the FI Round with 18" resonator. The best help I read online is that the Original with the 18" resonator vs the Round with 18" resonator, is that the round is about 15% louder. I would like to carry the classy look and sound. Anybody have a video, and which of the two would you choose? I guess if it is truly 15% louder, I would shoot for the Round one.

 

I have the traditional with oval mufflers, new X, 18in reso and 4 in tips and I'd definitely recommend it. Sounds really nice but I have longtube headers too. Here is a vid of the traditional, not mine though. I'll see if i can make a sound clip of mine too.

 

Thanks for the link video, that be great if you can make a sound clip. I think this sounds really good, the round cat back canister is definitely like 20% more louder and looks racing type. The car should have come with this stock. The mufflers look great and Classy!