Performance improvement data on exhausts?

[Davydomes]

Hi, I've read several times that one of the simple and cheapest ways to improve horsepower on an engine is to fit a performance exhaust with equal length pipes an low flow restrictions.

Is there any actual data to back this up on the web? What I mean is - Has anyone with a stock set up 1600 Twin Port (or any other set up) been tested on a rolling road before and after fitting.

If a company is selling these then they should have something to qualify the claim.

How many extra Gee Gee's do you get for your buck.

Anyone know of any????

 

[Dirty Harry]

Check this thread
http://forum.earlybay.com/viewtopic.php?f=4&t=32717&hilit=exhaust&start=20" onclick="window.open(this.href);return false;

 

[Davydomes]

Cheers!.......You've gone ahead and made my day 8) Sorry