BMW M4 tuning
BMW M4 remapping in Bristol, Somerset and South Wales
The M4 is one of the M cars we tune most, from the S55-powered F82 to the S58 G82, with engine and gearbox calibrated together. We come to you from our Weston-super-Mare base, across Bristol, Somerset, Gloucestershire, Wiltshire, South Wales and parts of Devon and Dorset.
BMW M4 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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F82/F83 M4 (2014–2020)
S55 3.0 twin-turbo straight-six, 431hp and 550Nm; Competition 450hp; CS 460hp and 600Nm.
G82/G83 M4 (2021 on)
S58 3.0 twin-turbo, 480hp and 550Nm; Competition 510hp and 650Nm. Newer ECUs may need unlocking first.
What a remap does on the M4
The S55 and S58 are both twin-turbo engines with boost under software control, so they respond strongly to calibration. Stage 1 suits a standard car; Stage 2 is for cars with supporting hardware such as downpipes and intake upgrades.
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We calibrate for clean, repeatable power and keep the factory protections in place, so the car stays as usable on the road as it was from new.

Gearbox tuning
F82s with the 7-speed DCT gain faster shifts and higher torque limits from a matched gearbox map. The G82 uses the ZF 8-speed, which we tune to match.
Examples of our BMW M4 work
Related BMW pages
Common questions
What is the difference between Stage 1 and Stage 2 on an M4?
Stage 1 is calibrated for a standard car. Stage 2 is for cars with supporting hardware such as downpipes and intake upgrades, which let the engine safely make more power.
Do I need a gearbox tune with an M4 remap?
It is strongly recommended. The DCT and ZF gearboxes have torque limits that a gearbox map raises to suit the engine calibration.
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
