M20B257 (E30 325e HEAD SWAP) CHIP
M20B257 (E30 325e HEAD SWAP) CHIP

This performance chip is made specifically for the 731 or 885 head on the B27 2.7L 325e block, preferably with Motronic 1.1/1.3 upgrade. Typically this is referred to as: a “Frankenstein” engine, M20B257, M20B25+27, “stroker” motor, “2.7i”, or “327i”. Please … Continued

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M20B257 (WITH M30 VAM)
M20B257 (WITH M30 VAM)

This performance chip is made specifically for the 731 or 885 head on the M20B27 2.7L 325e block with Motronic 1.1/1.3 upgrade. This is referred to by a number of names, such as: a “frankenstein” engine, M20B25+27, M20B257, “stroker” motor, … Continued

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E30 Alpina B3 Chip
E30 Alpina B3 Chip

This chip is a bit-for-bit reproduction of the original Alpina B3 M20 tune. This is not customizable (e.g. injector size, “stage”, or octane), and is intended only for use with the stock B3 injectors (apprx. 18.25 Lb/hr; same injectors used … Continued

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