Racebred said:anything more than 300bhp fault light will come on and your tranny will slip. you should be having the ZF 5HP19 transmission. Those having the GM transmission should be able to take up to 350Nm. better stick to 6.5psi. if not transmission confirm pit.
me not sure which one me have....its the e60 6-speed ZF for sure...current spec is 300nm....