Welcome to my auction, please have a look at my other auctions for more BMW parts and services.

 

Here I am offering a service to reprogram the BMW E46 M3 ECU (MSS54 and MSS54HP) to an Alpha-N tune that allows you to remove the MAF sensors. 

Benefits of Alpha-N

  • Allows to remove the MAF (mass air flow) sensor which needs periodic replacement.  Warn out sensors will make you lose power especially in warm weather.  The price of this remap is comparable to the price of a new MAF sensors!
  • Faster throttle response and more power
  • No loss of driveability and refinement
  • No problems when driving at high altitudes as the built in barometric sensor in the ECU compensates for the difference
  • cheaper alternative than converting to a full CSL setup (MAP sensor, 288/280 camshafts, ECU modification) as only the ECU needs to be modified.

Specifications

  • Alpha-N tune used without MAF sensor and carbon airbox (can be used with stock airbox)
  • the MAF sensor can be left in place but needs to be unplugged
  • an air temperature sensor still needs to be used - this can be either the sensor built in to the MAF sensor by leaving pins 1 (yellow/blue) and 3 (brown/orange) connected or if you will be using a carbon airbox, by connecting a intake air temperature relocation kit offerd on my other auction http://www.ebay.co.uk/itm/151141494906
  • 20hp gain at 7900rpm
  • 15Nm gain at 4800rpm
  • Removed top speed limiter
  • Raised rev limiter to 8100rpm
  • Shift lights enabled (does not work for every car)
  • Sport memory button modification, please choose one of
    • always on
    • remember last setting
    • leave as stock (enable with button)
  • rear lambda sensors and catalytic converters can be removed with no ECU error codes
  • auxiliary air pump can be removed with no ECU errors
  • internal EGR delete to reduce carbon buildup
  • EWS delete as a no charge option
  • lift-off burble can be added at no extra cost

IMPORTANT:  this is an auction for the service and not for an ECU.  You will need to send me the ECU to have it reprogrammed and it will be returned to you with insured postage.   When the ECU is removed it will lose the synchronization with the EWS.  Once you get it back you will need to re-synchronize it before the car will start.  If you are not able to do that then I can disable the EWS requirement in the ECU at no extra charge and it will be plug and play.

The MSS54/MSS54HP ECUs come with many part numbers.  This is not important as they are all covered in this service.  The ones on the picture are for illustration only and the service is not limited to those numbers.