Remapping Mx40i
Discussion
You don’t say where you’re based? Performance Torque have done a few cars for me (Midlands based) & seem to have plenty of BMWs visit them - they will dyno as well rather than some firms claiming gains but not supporting them with before/after evidence on a dyno/rolling road.
You might be worth posting the same question on one of the BMW forums as well.
You might be worth posting the same question on one of the BMW forums as well.
Rory I would head over here thriving community https://www.babybmw.net/forum/viewforum.php?f=74
I asked Charlie from Surrey rolling road (who must have dyno’d more than anybody in the country?) and he said Litchfield are the standout map.
I had DMS map my old m135i and I must say that was a stunner, so it will be between the 2 when I eventually get round to mapping my new m140i.
I had DMS map my old m135i and I must say that was a stunner, so it will be between the 2 when I eventually get round to mapping my new m140i.
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