Originally Posted by JNW1
Does the price for the 335i apply to the N55 engine as well as the N54? Assume the gains are a bit less with the N55 but realistically what sort of power and torque increases can be expected?
No this does not include the N55. Due to the time it takes to remove and refit the ECU there are no discounts on the N55.
Gains are 40-50 BHP and 50-60 lb.ft torque.