Quote Originally Posted by WhatADream View Post
So im still pretty new to Audi, and I am trying to learn what exactly is the difference between the S4 and RS4 engines?
besides the nice red intake manifold you see when you pop the hood of the
RS4, what else is giving that pup 80 hp more?
why dont you do a search, every post of yours has been asking something that has been answered a million times