BMW M6 and M8 tuning
BMW M6 and M8 remapping in Bristol, Somerset and South Wales
The M6 and M8 share the twin-turbo S63 V8 with the M5, and respond to calibration in much the same way. We tune both at your home or workplace. We come to you from our Weston-super-Mare base, across Bristol, Somerset, Gloucestershire, Wiltshire, South Wales and parts of Devon and Dorset.
BMW M6 and M8 generations we tune
Factory figures vary by market and year. We confirm your car's exact ECU and software before quoting.
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F06/F12/F13 M6 (2012–2018)
S63 4.4 twin-turbo V8, 560hp and 680Nm; Competition 575hp and later 600hp.
F91/F92/F93 M8 (2019 on)
S63 4.4 twin-turbo V8, 600hp and 750Nm; Competition 625hp. Newer ECUs may need unlocking first.
Grand tourers with serious potential
These are heavy, fast grand tourers, so the most noticeable change from a remap is effortless mid-range: overtakes take less throttle and the car feels lighter on its feet.
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As with every S63, we check the car carefully before tuning and calibrate within sensible limits for long-term reliability.
Gearbox tuning
The M6 uses a 7-speed DCT and the M8 a ZF 8-speed M Steptronic, both of which we tune to match the engine.
Examples of our BMW M6 and M8 work
Related BMW pages
Common questions
Is the M8 engine the same as the M5?
Yes. The F9x M8 uses the same twin-turbo S63 V8 as the F90 M5, so the tuning approach is very similar.
Can you tune the M6 Gran Coupé?
Yes. The F06 Gran Coupé shares the S63 and DCT with the coupé and convertible.
Recent BMW jobs
BMWs we have tuned, with their figures.

BMW X1 18d Stage 1 with DPF, EGR & Swirl Flap Solutions
136hp 180hp+44hp

BMW M135i F40 Stage 1 & Same-Day MG1 ECU Unlock
306hp 335hp+29hp

BMW 330e G20 Stage 1, Same-Day ECU Unlock & Gearbox Tune
292hp 400hp+108hp

BMW M340i G20 Stage 1, Same-Day ECU Unlock & Gearbox Tune
374hp 450hp+76hp

BMW G20 320i Stage 1 Remap & Same-Day MG1CS201 ECU Unlock
184hp 260hp+76hp

BMW 128ti F40 Stage 1 & MG1 ECU Unlock
265hp 310hp+45hp

BMW M235i F44 Stage 1 & Same-Day MG1 ECU Unlock
306hp 335hp+29hp

BMW M235i N55 Stage 2 ECU Calibration
326hp 415hp+89hp

BMW X5 G05 xDrive30d Stage 1, Gearbox Tune & MD1 Unlock
265hp 330hp+65hp

BMW 430d F32 Stage 1 Remap & EGR Solution
258hp 320hp+62hp

BMW 320i G20 Stage 1, Gearbox Calibration & Bench Unlock
184hp 260hp+76hp

BMW 430d F36 Gran Coupe Stage 1 Calibration
258hp 320hp+62hp

BMW 730d Stage 1 Engine Tune
265hp 330hp+65hp

BMW 330e Stage 1 (July 2026)
292hp 400hp+108hp
Customer feedback
