why? I have a fibreglass one, bolted to the floor and bolted shut.just make sure its a metal battery box, not a gay plastic one.
I'll get a metal one made up then.not sturdy enough, anything rolls around in your boot and it'll smash.
Any rally supply shop will sell ally ones.
Fred mentioned before that the smaller batteries dont hold their charge.
mark.. did you find the cup racer airbox set up helped in anyway or gained any power?
would you recomend it?