Quote Originally Posted by Avus-RS6 View Post
Our filters are tiny, I would put money on 25+hp gain with a real solution. Probably wouldn't feel it at over 500 wheel though, so who really cares.
I'd tend to agree on the potential increase....but:

Less restriction helps at all RPM and loads; including throttle response. In my case the filters were old and dirty from the prior owner (as most are from what I've seen so far), so the "increase" may have been twofold.