man i have had the sparky out and air box thing and cherry bomb. but to day i put the sparky back in so i can ride it in my yard 2.5acr's. and man it felt like such a f'ing dog! but i also got 12 of them air box vents i put to in the stock 2 hole's on the air box lid and the rest on the lid. i hope it geting enuff air like that? i mean it should there is 12 of them round vent's. i might buy 12 more but's that 24 vents i got to clean and oil lol.