Originally Posted by
sluggo_sx8
WOW that is a huge gain! Even removing 1 shim makes a nice differance. So we can remove 1 shim in a stock B5 without any trouble?
Yes you can do it safely....Ron actually said this in the B5 thread waaay back if using Werks 30% fuel.....not that it wouldn't work w/ others, but that's how it'd been tested by Kortz and the like.....search 'free horsepower' or 'head shims' in the Werks B5 thread in posts made by Werks, you should find it.
Merry Christmas......how do you like your gift of free horsepower, LOL!