Quote:
Originally Posted by TAG UR IT
It is my knowledge...and experience...that a freer flowing exhaust most CERTAINLY will give a performance boost. Toss in headers, high flow cats (or none), and pure pipes and that exhaust will give a gain....pretty much over any stock exhaust. SLP Loudmouth and y-pipe. I had it. I used it. I saw the gain. Yes...there was a performance benefit.
There is no doubt in my mind that there will be a benefit from a chambered exhaust.
Wait.....hold on.....
http://www.gmmginc.net/Exhaust/index.php
Did that say "dyno tested...Improved Horsepower?"
 
More info on Toms stuff... http://www.tomhenryracing.com/toys/ss_camaro.htm |
Sorry, but every speed equipment manufacturer is going to say "dyno proven" and what not. Even the Turbonator. I'm just saying that I know a lot of stock catback cars that make big power, most of which being LSx cars. It makes little sense to put a freer flowing catback behind stock cats because the exhaust will only flow as well as the tightest bottleneck, which they are.
More catbacks are disproven than proven on third party dynos.
Granted, I'm talking modern technology. The 4th Gen F-body exhaust was designed 16 years ago, and modified slightly 10 years ago.