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I truly appreciate everyone's knowledge and insights, thank a million! I truly appreciated the responses. Look like I am going to Purchase the Stillen or the Fujitsu.
If you want slightly more performance, go with Stillen. However, the Fuji looks--especially on the tips--so much better than Stillen. The tips are huge and make a great look for the G. I've only seen one G coupe with the Stillen in person, and I like how the Fuji looks over it; it'll have completely flawless fitment, too, because Fuji is OEM. But in the sound area, you can't go wrong with either. And, as mentioned earlier, the Invidia Q300 will also work on those terms.
My question then is what is the BEST Catback on the market for the G37x, I am looking for power(Bite) and not sound(Noise)??
Originally Posted by XSman
Throw a blower on and any one of these catbacks with some HFCs if you really want more hp. Bolt ons are a WOT IMO.
Second this. If you're looking for power over noise, why not start a little further up the pipes? I believe Stillen makes headers and Fast Intentions / Berk make HFCs. These would probably yield more of that power you're seeking over a cat-back or axel-back exhaust. Just my $0.02.
Z1 hfc are cheap and highly recommended. As far as exhaust goes I have top speed pro 1. I bought the y pipe and the y pipe back exhaust. Great sound and price but have problems with it leaking/rattle and comes with cheap *** gaskets. I no longer have rattle but get exhaust leak at where the hfc meets y pipe and at the axle back bolts. (They burned black marks right above on my car. I will be selling for the ark. Also dyno numbers will be lower that a higher quality exhaust. Trust me on this I have regretted tsp1 exhaust since I got it
