how can i tell a m3 motor from a stock one ??? help about to trade
i can pickup a 325 with a m3 motor in it , how can i tell if its a real m3 motor ?? besides the fact it should have much more power and a valve cover that says mpower on it , i would think a m power valve cover would go on to a 6cyl motor ???? the says he got a m3 motor out of a recked m3 , but i dont know if this 100 % truth . looking at it this weekend . HELP !!!