Well, I've passed 13K on my 07 R6, and I think it's time to do plugs again. I've seen the NGK gapless plugs and thought about making them my next upgrade. I already have pretty much every performance mod short of internals for my bike, so I figured the extra 1-3 HP these plugs may give would be worth it, plus it's replacement time anyway. I've seen the several threads where people question spending the cash, but thats not what I'm asking. I have my own money and spend it as I wish. My question is, how will gapless plugs perform on the street? I don't expect to get 10HP from them or anything crazy, but a boost wouldn't hurt my feelings any. I'd like opinions from those that have run them on the street, or even from guys that have them on a track bike. So, opinions?