E60/E61 - 2005 - 2010
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Order This File Ask a QuestionThe Alpina B5 4.4 V8 Bi-Turbo 507hp (E60/E61 - 2005 - 2010) produces 507bhp and 700Nm in standard form. Our Stage 1 ECU tuning file raises output to 600bhp and 800Nm, a gain of 93bhp and 100Nm, with no hardware modifications required. The file is delivered through the ByteFlash Portal and is ready to write to the vehicle.