welll i bought a 86 coupe 325e a while back and when i bought it a got a but load of parts with it. and i got a dinan performance chip, but im not sure what chip it is.. and im not sure if i wanna install it because i dont know if ill have to run high octane gas, that is sooo expenive now....
the chip has has some codes on it this is what is says.
CARB E.O.# D-176-8
can anyone help me out