Nissan 370Z Forum - View Single Post - I'm looking for a really loud exhaust that is EPA & CARB approved?

Guard Dad · 12-09-2011, 07:47 PM

As long as you don't touch the cats you can install most any cat back exhaust you want and not have any emissions issues. As for noise you'll have to check your state regulations.

12-09-2011, 07:47 PM	#7 (permalink)
Guard Dad Enthusiast Member Join Date: Aug 2010 Location: South Orange County, CA Posts: 422 Drives: 2010 370Z Silver A7 Rep Power: 14	As long as you don't touch the cats you can install most any cat back exhaust you want and not have any emissions issues. As for noise you'll have to check your state regulations.