Quote Originally Posted by Bio248 View Post
the downpipe is acting as a collector for your manifolds. better collector means better flow.
better flow out of the manifolds yes. but as soon as the pressure is equalized than the flow becaomes the same as it was before. I dont see how the exhaust can cool down over a 2 1/2 foot piece of pipe that much to matter either



Just saw a pic of your car in the tint post and man does it look good.