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Very nice. I've restored the running gear (suspension, brakes, etc) on my 528, but haven't yet done anything to the motor. I notice you've modified yours, and your horsepower specs certainly are an improvement over stock. What did you do so far? I'm considering a re-program ECU update (like an ESS) but hesitate as hp gains don't seem that stellar, given the already tweaked (in my opinion) nature of the 528 in-line 6.
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2013 535xi, Carbon Black, beige interior, M Sport package, HUD, DDC & ARS, ACS springs, Kelleners wheels
2010 Z4 35i, Crimson Red, beige interior, 6sp manual, Adapative Suspension
2000 528i, Cosmo Black, beige interior, Sport package (retired)
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