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New BMW M3 M4 Custom ECU Remap

Tried and tested M3 and M4 remaps now available at MoreBHP: Up to 545bhp now available.

The New M3 and M4 are true works of BMW art. Leaving little room for hardware modification.

However with the high hardware spec room can be found for improvements in the ECU programming.

With a slight increase in turbo boost along with carefully optimised timing, fuelling rework and various limiter massages over 500bhp is available. This is custom software enhancement only, no hardware modifications required - standard air filters, standard exhaust, etc, etc.

More importantly this is a genuine custom remap NOT a tuning box. Fitting a tuning box to such a car is total stupidity, we have tested these so called solutions and found the ECU having to close the throttle to prevent engine damage due to excessive knocking (the result of way too much boost without correct fuelling/timing calibration).

We have spent countless hours developing and testing MoreBHP software on our own M3.

New M3 M4 Custom ECU Remap

In addition to the obvious benefits of 500+bhp/700+Nm the following is also included-

  • Cold start off (especially handy if you have a noisy decat at cold)
  • Decat MIL off 
  • Exhaust flaps permanently open in Sport Mode
  • GTS style enhanced exhaust pops and bangs.
  • Enhanced Sports Displays to reflect the increase in power and torque
  • Optional selectable power modes for ECO, Comfort, Sport and Sport Plus
  • Speed limit removal
  • Higher rev limit for manual cars
  • Remap cloak to prevent detection by BMW

With the addition of the Akrapovic exhaust, which is another work of art, we have been tirelessly developing the M3 M4 remap to rank amongst the best in the world. Power is now a staggering 545bhp with torque at 775Nm.

Remaps can be tailored to suit fuel grade used, for example regular or super unleaded petrol. For the best power results we recommend that petrol cars be run on super unleaded.

Where the vehicle allows we can also add features such as speed limit removal, increased rev limit, launch limiter, hardcut limiter, exhaust flaps open, sports display dials adjustment, cold start off, Decat MIL off, DPF off, EGR disable, DTC (Diagnostic Trouble Code) removal and remap on the sport button.

As well as MoreBHP HQ in Crewe, tried and tested MoreBHP Remaps are also available at a few carefully selected and exclusively authorised MoreBHP DealersBVR Automotive in Stoke, VRT in Slough, Shaikly Motor Company in Essex, Nordic Motortuning in Norway, Diagnose service in Norway, BPS Autos in Australia and ATA Tuning in China.