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Discussion Starter #1
Hi, I'm looking for someone who can remap my 420d (x-drive manual gearbox). Of course I'd like it to perform like a straight 6 diesel if possible!:) but I'm not too concerned about the power/torque or economy. I'm more interested in removing/reducing flat spots at low revs to give a smoother drive. I read on the forum some great reviews of Jasons work at BW Chiptune in Essex. However I'm looking for someone with Dyno/Rolling road facilities in the Northamptonshire/Leicesteshire area ideally. Thanks for any advice/contacts.


3,197 Posts
give jason a message,,he can do on rolling road when miles away,,he did with my 335d,,,350 miles away,,7 dyno runs etc

4,281 Posts
We normally see 225bhp with 350ft of torque from these 2.0d 184bhp engines

BW chiptune
Tuning BMWs since 1991
Dyno Dynamics rolling road.
BW autorepairs
Over 30 year repairing BMWs.
New and fully refurbished BMW/Alpina ,Ecus (DME,DDE)and Cas units.
BMW Ecu repairs.
BMW remote Keys made and cut same day with or without car even if all keys lost we can supply you a key like the dealers do.
Key data fixed for non starters or when theft attempted.
Correction of Engine ECUs Cas and key fitted to your car (when a key set from a different car has been used).
Digital Service Records rest and corrections in idrive screen on 2013 onwards cars.
DPF repairs fixed without the need of removal of its guts or replacement.
40% of my work is repairing the problems that are caused by other tuners remap

For more info look in our section under sponsors on this forum

0208 561 1818
07831 103030
Unit 8&9
alpha industrial estate
Clayton Rd


Orihuela Costa

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