Why do cars lose low end torque with open exhaust systems?

[~The Jester~]

GEARS-Hey Pete, 4.56 is alot of gear. I did the same "figuring" when I decided I wanted them too. Along came a set of 4.30 for the right price so I installed them, took out 4.10 by the way. Now here's the deal, yes with the OD I am still VERY capable of cruising on a highway at 65-70 (Or more, DOH!) But now the car spends NO time in first gear! Definitely get a rev limiter in that car if you don't have one already!!!!! And make sure your headrest is sturdy! Ha!

PIPES- A friend of mine just had Kromer Kraft custom build headers for his W8 powered Demon. There is a very small, but noticeable DECREASE in diameter in the 4" collector, according to the guy that built them, this is for "street torque". $1300 for a set of headers, I'm thinking he knows what he's talking about. I guess the point to my post here is I think Bassani has already thought of this too. It doesn't take much to affect flow, and I bet if you look, they already took care of you!

Good luck!