never heard of them, but thanks to you i checked out their site. i dunno about the "5-6 hp" claims, as bolting an expansion chamber and a carb on probably ain't gonna add 3 hp to a stock kit. and 400 bucks seems a little steep, but hey, everyone's gotta try and make a buck, right?
i have a problem trusting any website that's filled with typo's, though. but just because they can't spell, doesn't mean they can't make a good product.