Damn that is one hot bike... oh wait did I just blow my wad complementing a gixxer??? Fack... I need to see my Shrink...

Honestly, a full system gets you about 10% with a PCIII & tuning... that may or may not be conservative. Considering the price of those pieces, I would say invest it on a couple of track days & learn to be faster rather than own 10% more power... But hey who am I to say mods are not cool

I can understand the noise issue, if that Yosh can tone the noise down to your satisfaction, I say go for it. I like the way it looks and IMO opinion, Yosh\Suzuki & Muzzy\Kawasaki got together like PB&J.