Hmm...the TOR's give minimal gain? I wouldn't consider them then. Thats my main concern. As to the jetting with TB's, this is what i don't understand........if you can further improve thier performance by jetting, wouldn't that suggest that with stock jets they are NOT jetted correctly? The only thing i can think of is that they are not correctly jetted with the stock jets, but that they are "close enough". Is that it? If it is, then tell me this......will the stock jets with the TB's on make the bike run leaner or richer than the stock bike/pipes? Sorry if i'm taxing your patience Dinqua, but you seem to be DA MAN when it comes to this stuff.