Quote:
Originally Posted by seank
I am always hearing about tuning the z4m. If you really want to mod it, get a stand alone for 3-5000 and tune it for anything just how you want.
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The problem is there are no standalone ECU's with harness's designed for the Z4M ( trust me I have looked extensively) .Our harness is very different from the E46M3. So you need to buy an ECU and pay for a full custom harness to be made, as well as the tuning. Sure it can be done but you are looking at 10k minimum bc of labor.
George