Here is a Mopar Muscle Magazine article comparing a variety of stock manifolds plus headers on a mild 360.

Mopar Muscle exhaust comparison.

I did hear something about some of the V-8 Magnum exhaust manifolds being fairly efficient, but I don't recall the specific years or if there would be any issues with exhaust pipe routing in a car due to their truck application.


Found this older moparts thread also!

moparts OEM exhaust manifold inquiry. .

Last edited by Locomotion; 09/13/10 05:05 PM.