It really depends on what you are trying to accomplish. A good ported 13b is sufficient for most anything. Oh and a big turbo
A
anguswilly
+1y
20B is not just easy to source or get in there. By far the easiest power adder is a turbo kit.
fdugn545
+1y
Rx8 is my achievable dream car, I've wanted one since I first layer eyes on em. I've done a little research on them tho and mml is right, the rx7 motors are a bit better but the riensis is still not too shabby IMO.