just wondering, which kit are you going for? the best kit ive heard of is a kit from CT racing/ trenga racing. its a lot more expensive than most 240 kits, but youll be shooting out banshee type hp! a dyno says 40hp. most 240 kits are overrated though, cause they alone wont make that big of a difference, believe me, i researched this a lot when i was thinking about the same thing for my blaster. to get a real benefit out of the other 240 kits you have to get the intake and exhaust ports opened up/ changed (i dont have a good word to describe it) and a larger carb, a pipe and silencer, and a few other goodies, the nice thing about the CT kit is it has all those in one kit, and if you have any problems, its nice to only have one company to talk to, most of the time, if something goes wrong, a company will just blame it on some other company that you have mods from. anyway, heres the link, check it out. Trenga ultimate 240 kit or try CT 240 Sonic Complete Package.