Nissan 370Z Forum - View Single Post

wanker · 03-03-2016, 11:16 AM

The stock 370z CBE exhaust diameter runs 2.25 inches and the Nismo exhaust is 2.5 inches (60 millimeters). Hence, the Nismo's larger exhaust diameter will improve your hp, typically in the 15-20 hp range, by reducing the back pressure. Candidly, any 60mm larger diameter exhaust will do this.

Thus, if you think the price is right go for it. Also despite what others claim in this thread, the Nismo's hp gain over the stock Z is not due to the tune, but the exhaust. If you search the forum, there is a tune mapping comparison and the difference is negligible.

03-03-2016, 11:16 AM	#6 (permalink)
wanker Enthusiast Member Join Date: Apr 2014 Location: San Diego Posts: 443 Drives: 2011 370Z S/T A7 Rep Power: 2901	The stock 370z CBE exhaust diameter runs 2.25 inches and the Nismo exhaust is 2.5 inches (60 millimeters). Hence, the Nismo's larger exhaust diameter will improve your hp, typically in the 15-20 hp range, by reducing the back pressure. Candidly, any 60mm larger diameter exhaust will do this. Thus, if you think the price is right go for it. Also despite what others claim in this thread, the Nismo's hp gain over the stock Z is not due to the tune, but the exhaust. If you search the forum, there is a tune mapping comparison and the difference is negligible. Last edited by wanker; 03-03-2016 at 05:24 PM.