Quote:
Originally Posted by vachss
Several places have software for the S54 motor in the M's as it's been around for a while, but I don't know of any domestic sources for software for the newer N52 motor in the si's. If ESS has it then I'd certainly be interested.
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The motor may be the same for the engines...but the software and ECUs aren't. Different cars require different upgrades. It's been discussed at length here and bimmerfest if you want to do a
