Hi folks. I've done the M50 manifold conversion with the bigger throttle body, de-cat and Ac Schnitzer back box on my 328i. (soon to be changed for a Scorpion back box)
My question is will there be any big advantages to getting the ECU mapped or flashed?
On my Skyline it was must, but I also have a stand alone ECU on that so live-mapping isn't an issue. I know that the Bmw can't be live-mapped so how does it work, is it just a generic map that is used on all of them as a tailored one cant be done?
I just wanted a little feedback from people who have had it done, i.e
performance gains, fuel consumption etc before I go spend my heard earned cash!