Nissan 370Z Forum - View Single Post - Any one running Speed Force headers besides UFreefer?

UFreefer · 02-05-2015, 11:24 AM

The numbers are real

I've since sold the car for a Porsche 911S but the Z was as fast from a roll in any gear as the Porsche. Dyno's numbers are subjective, I get it, but many other Z's have used this dyno and my car made much more power. I did same day before and after pulls for every mod and backed up the numbers on a second dyno to make sure. I think the reason for my high tq numbers is the OEM mufflers and Tanabe Y-pipe. I tested other larger dual exhaust setups and they made very minimal peak hp gains but lost big mid range.
The headers use burns collectors, about as good as it gets and their made in the USA, not China

02-05-2015, 11:24 AM	#3 (permalink)
UFreefer Base Member Join Date: Mar 2010 Location: Tampa Posts: 200 Drives: 09 Sport Touring Nav Rep Power: 15	The numbers are real I've since sold the car for a Porsche 911S but the Z was as fast from a roll in any gear as the Porsche. Dyno's numbers are subjective, I get it, but many other Z's have used this dyno and my car made much more power. I did same day before and after pulls for every mod and backed up the numbers on a second dyno to make sure. I think the reason for my high tq numbers is the OEM mufflers and Tanabe Y-pipe. I tested other larger dual exhaust setups and they made very minimal peak hp gains but lost big mid range. The headers use burns collectors, about as good as it gets and their made in the USA, not China Last edited by UFreefer; 02-05-2015 at 11:28 AM.