i recently upgraded to a different throttle body. i did not get a fastman throttle body like i originally planned so here you go. there was a small piece of it that got busted off one time when i was taking the cai off but its fine. i filed it down and would be easily milled off if it was bored out to a 50mm or 52mm. there are no problems running it like this. $50 is the asking price.