Hi guys, I have a Superchips ECU and a BMC Carbon airbox which the previous owner installed about a year ago. I just have a few quick questions:
Are the Superchip ECU's any good for the E46 330's? Or would I be better off getting a re-map from someone like E-maps?
Would I notice any difference in performance and fuel consumption by going with the E-maps or other re-map?