exhuast back pressure

[Alan Cottrill]

I don't know much (read that as anything) about exhaust and how it relates to performance.

I have a few questions:

does exhaust back pressure help with low end torque?

will a very free flowing exhaust have better top end performance at the sacrafice of low end performance?

[kstylianos]

Al,

Chuck Moreland wrote this tech article not too long ago. Should answer most of your questions.

http://www.elephantracing.com/techtopic/headers.htm