Was swapping out my engine and found out the wrong way the difference between the 6 port n/a and the 4 port turbo. The engine I got bolt is a 4 port and I originally planned on swaping the intake manifold over. Now the question is what 4 port intakes will fit onto it? Generation wise? I've done some research and it looks possible with a 2nd Gen, and a 3rd Gen are identical. But the renisis intake outer ports are not elongated like the rx7. Anyone else knowledgable on this?