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I am a new 335d owner and heavily weighing the options of an Evolve vs. Renntech ECU tune.
One last important issue in the decision; if I sell the car, or need to revert the ECU back to factory programming, will VS motorsports and Evolve be around over the next few years to do this for me? If Evolve pulls out of the US or VS motorsports goes out of business or drops the Evolve tune, who in the world would be able to revert my ECU back to stock, or even update it for that matter?
Renntech has been around for quite a while here in the US, I get the impression they do not carry such risks, but I could be wrong.
I have no affiliation with any automotive industry whatsoever other than being a BMW owner.
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