I've beat every LTR I've raced with my YFZ the LTR's are pretty heavy bikes for the 450 class. 370 pound bike vs 414 pound and the most horsepower you're gonna get on a stock bore and stroke 450 is about 65hp(unless your on a bottle). YFZ's with just having a CT pipe dyno at 48hp. I'd say mine is roughly close to 50hp it's not going to get blown out of the water by any other bolt on 450...I'm not saying it wont lose. I personally love the early model 450's they're lighter! I do not have the YFZR those are just as heavy as an LTR. BTW I've beat LTR's with full pipe's and the cherry bomb back when I was running the GYTR set up one of my friends has that exact set up.