Gotta say that after week, the xHP stage 3 in manual mode is super nice and very polished. Shifts are executed very quickly and the smoothness is markedly better than alpina.. especially downshifts. Would highly recommend it.
I definitely would recommend you have a good battery charger. Not everyone's battery is the best. I had power outage using a mid grade battery charger doing a map upgrade and am glad nothing was ruined. I am glad i wasn't flashing anything important. I have since replaced my battery and use a constant voltage source (OTC 700A, i found for cheap).
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X1 35i, H&R springs, Bilstein HD shocks, BMS JB4, BMS chargepipe, xHP trans flash
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