ok guys ive been noticing a lot that evry few days we get a lot of the same 12 turbo conversion questions i was just suggesting that sombody who knows what thier talking about do a write up. i saw one on here that is great but i still have questions like if i can modify an s4-s5 stock manifold can i just hone a aftermarket for the fc so i can run a bigger than s5 turbo? just a thought