Spoon Throttle Body vrs. B16B Throttle Body


itr 62mm can go to 70mm i believe, thats what spoon used to do, not sure about the b16b 60mm, ask rvm, he did it recently :nice:

The B16B throttle body can be bored to 66 mm and the ITR can be bored to 69 mm without any problems :woot: I didn't bore the ITR one to 70 mm, but it can be done.
 
Hello.anyone has done this mod to stock internals b16b ,is it worth it(without boring the intake manifold)?
 
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