Typical before and after power and torque for every BMW M6 engine we tune. Your own car is custom mapped on our in-house 4WD dyno, and every map is fully reversible.
Every price on this page is a full custom dyno tune
Not a generic file bought in and flashed over the port. Your BMW M6 is strapped to our in-house 4WD dyno and the map is written for your car, on the day, from its own data.
Health check firstWe look the car over and read the fault memory before we touch anything. If something is wrong, you get told. We don't map over a problem.
Live data loggingBoost, ignition timing, fuelling, knock and temperatures all watched in real time while the car is running under load.
Custom calibration on the dynoThe map is built and adjusted run by run against what your engine is actually doing, not what a file supplier assumed.
Before and after printoutYou leave with the graph: your standard figures and your tuned figures, measured on the same rollers, the same day.
Spread the cost. From £249.83/mo over 6 months at 0% APR with Bumper, interest free. Or choose Pay in full when you book and pay with Klarna. How finance works › Book engine and gearbox tuning together and save £125.
BMW M6 remapping questions
How much power will a Stage 1 remap add to a BMW M6?
Every BMW M6 engine is different, which is why they are listed separately above. At the top end the M6 - V8 4.4 Bi-Turbo picks up 120bhp, going 560bhp to 680bhp with torque up to 850Nm.
How much is Stage 1 tuning on a BMW M6?
A BMW M6 Stage 1 is from £1499 inc VAT; gearbox software is £385 on its own, or £125 less when booked with the engine tune. Finance is 0% over 6 months with Bumper, or choose Pay in full when you book and pay with Klarna.
Is the ECU locked on a BMW M6?
Only the later cars. From about June 2020 the factory locks the ECU, so it needs unlocking before tuning, which we handle in-house. Pop your registration in and it will tell you either way. Check if your ECU is locked ›
What happens to my warranty and insurance if I tune my BMW M6?
A remap is an aftermarket modification, so it is your responsibility to declare it to your insurer. It may also affect any remaining manufacturer warranty. Our maps are fully reversible: the car can be put back to its factory software whenever you need.
Can the remap be reversed, and how long does it take?
Most Stage 1 tunes take around two hours. If the ECU needs unlocking we do that here on our own bench during the same visit, so it does not make the appointment any longer. It is completely reversible: the car can go back to its factory software whenever you need.
Ways to paywhen you pay in full0% finance over 6 monthsCard & Apple Pay£50 deposit secures your slotHow finance works ›
Whichever you pick, the total carries through to checkout, so pay in full by card, Apple Pay or Klarna, or secure the slot with a £50 deposit. Figures are typical for a healthy, standard vehicle; your before and after dyno printout shows exactly what your car makes. Your car’s actual output depends on its condition, fuel quality and any supporting modifications. Prices shown are for Stage 1 custom dyno tuning inc VAT; locked ECUs (most BMW and Audi registered from mid-2020) carry an additional unlocking charge, confirmed when you book.
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★ 4.9 · 264+ Google reviews
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In-house 4WD dyno · before & after printout
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BMW ECU unlocking · in-house, same day
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0% finance with Bumper · spread it over 6 months
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10,000+ vehicles tuned · 14+ years
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BMW & VAG specialists · Warrington
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