mad4slalom
Senior member
is a remap on an m of benefit ? why would bmw put out a performance car with a map that can be improved with a simple remap, what figures are you hoping to achieve, cause m's with fairly big mods such as headers cats and back boxes, induction kits , underdrive pulleys,and schrick camshafts are only achieving gains of 30 bhp iirc, add up the price of that lot and you are talking several k inc labour costs , icant see how a 500 quid mapping sessioncould realise more than 5 or 6 brake horse max, :?