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      03-21-2013, 10:36 AM   #53
supersebbo
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Drives: iX3 Premier Pro (Dec 21)
Join Date: Mar 2013
Location: UK

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What exactly does the TMC box do? Is it actually an engine remap, or does it intercept and manipulate the signals between the ECU and the engine/sensors 'live'?

My concern with the boxes is that if you have a major smash (or even an average one), its going to be pretty hard to hide that bright red box from the insurance company unless you can get into the car and rip it out before it's towed away (which would be hard if you're in an ambulance!). You can kiss goodbye to any cover from them if they find that and find yourself in a pretty sticky legal situation.

Is it possible to remap the engine 'natively' by reprogramming the ECU, or is that well locked down on the BMWs?
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