sr20det is even more powrful than a rb20det but yeah he's probably done that because sr20det come out FWD factory and RB dont
I agree with whoever said to get a RWD SR20de (or ca18de?) because at the end of that day you will need to pick up heaps of RWD parts and/or modify them because i dont think sr18 came out RWD. So if you arent getting it free then dont bother