Has anyone fitted a Milltek cat back system to an S3? Is there any gain in performance? be it quicker pick up or bhp figure? Is it louder than the standard system? If so by how much? Is it livable on a long motorway run, or does the droneing drive you nuts?
Can anyone post a picture of what it looks like coming out of the back bumper?
Cheers
Can anyone post a picture of what it looks like coming out of the back bumper?
Cheers