No way a warrior is going to smoke me if I'm riding a 450R. Something wrong with that rider. And with $900 dollars on a cylinder kit that comes with all the extra's isn't going to touch a national race engine built by trenga. But that 900 kit is going to blow up. Mister big mechanic! Its easy to slap a cylinder and piston on. Hell a retard could do it. And Just so you know I am a ASE certified mechanic. Where did you get all your experience. When I talk or type I back up what I say and what I say or type is knowledable. All I hear you talk about is I did this and I did that. I tried this. I fabricated this with a few washers. Give me a break with your non sense. If you need to look again. There is over $2000 in mods on this engine without labor. Pipe, Flat slide air stryker Carb, Cylinder, Head machining, 71mm pistons, K&N external filter, Intake adapters, race clutch, carbon fiber reeds, race crank, Long rod, shaved cases, hot fire coil, large petcock. And the list goes on. Your crazy! I'll meet you half way for a race and winner takes both bikes home. Get your $900 together.