Originally Posted by
the saint
i dont know about bhp but i had a rs500 airbox that i bought from a guy in scotland (cant remember his name) that had a white sapph that done 188mph so they cant be to bad lol
Sure it didn't do 188 with that airbox, It got sold as we made a larger custom airbox to flow more air as we thought it was restricting it, which it was...forget what bhp he had then though.