Originally Posted by ChrisBuer
I can echo the comments here about the N55 pipes and FMIC. I started with a remap only which took my car to 401 BHP (flywheel). After the midpipes and the FMIC were installed, this figure increased to 431 BHP. Throttle response improved massively along with a noticble improvement in the way it now holds stronger boost for longer.
Chris, which brand of FMIC did you go with?
Is the tune very important to achieve the improved throttle response, or will the mid pipe and FMIC do the trick?