I have a 99 996 with a Gianelli system on it. I was wondering whats loudest? Mine doesnt seem to be as boomy as some.
Nonsense, forza its also a slip on, Just couldn't find another video.That has zero relevance with Forza exhausts and everything to do with that being a full-on racebike.
Displacement and cams affect the sound far more than which brand of slip on is chosen.