Ok i'm getting what u are all saying. Thx for the advice :) Now this is what i dont know: is the transmission of the a12, a14, and a15 the same one? Also, as benny said, would i have to change/ modify the transmission and diff if i get the a15 up to 150 bhp? Would the drive shaft be strong enough? I am not that mechanical, i wouldn't try to fabricate stuff myself or mess with the engine, but i can with my da's help. I would mess something up by doing it myself for sure! I am 19, still not experienced :/ Btw i would be happy with 120-130bhp as well :)