BMW M6 (2015) 4.4L V8 – Developed 566 to 653 bhp with torque 502 to 694 Lbft.
BMW’s M cars are a regular sight at Celtic Tuning’s HQ and for good reason. These cars really do hit hard as standard, however there’s always room for improvement.
With Celtic Tuning’s stage 1 software applied to both of the ECU’s (yes two – watercooled – mounted to the top of the V8), their lengthily development sees a remarkable 653 bhp and 694 lbft torque – giving true supercar performance (to what was already a seriously quick car)….
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