i was under the impression that a b17a1 stock intake manifold was the same as a b16a manifold is this true or not? im trying to buy a skunk2 intake manifold and throttle body and the sell says i would have to use a b16a intake manifold is this true or not?

The B17A has a PR3 head, which is the same casting as the B16A, B16B, and B18C (ITR). The intake manifold is interchangeable with the B16A.

thank you for your help