ive heard of ones that u have to drill the T/B. i dont wanna do that,so what are some companies that yall recommend that u just bolt them right in?
any ones that i shouldnt get?
thanx

 

don't know of any that you have to drill the TB for. but i use the jet 63100. snaps into the first edge of the accordian boot. some airfoils have a bolt that goes through the TB. you have to remove the top plate to get the retainer nut into the TB.

 

i have a hypertech airfoil and you have to remove the top plate but it is no big deal. plus i like how it bolts in not just snaps.

 

There are a bunch, just get the cheaper 1. They make little difference (on engines more on the stock side) and are almost all basically the same.