Typical before and after power and torque for every BMW M2 engine we tune. Your own car is custom mapped on our in-house 4WD dyno, and every map is fully reversible.
Locked ECU? Already in the price. Every BMW in this generation was built after June 2020, so its ECU is locked. We unlock it on our own bench the same day, with no extra time, and the £100 is already included in the prices shown. On its own, if we’re not tuning the car, the unlock is £249. More on unlockingBuilt from June 2026? These have BMW’s new Euro 7 ECU, which can only be unlocked by sending it away: £399 added to a tuning booking, 3–4 working days with the car staying with us.
Locked ECU? No problem. BMW and Alpina cars built from June 2020 have an encrypted ECU. We unlock it on our own bench the same day — £100 added to a tuning booking — and it adds no time to your appointment. On its own, if we’re not tuning the car, it’s £249. Check your reg → · More on unlocking →
Stage 2 Petrol supporting mods: decat or sports cat + uprated intercooler.
Every price on this page is a full custom dyno tune
Not a generic file bought in and flashed over the port. Your BMW M2 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 £99.83/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 M2 remapping questions
How much power will a Stage 1 remap add to a BMW M2?
Gains vary by engine. The strongest on the BMW M2 is the M2, which goes from 460bhp and 550Nm to 640bhp and 800Nm, a gain of 180bhp. Find your engine in the table above for its own numbers.
What does a BMW M2 remap cost?
Prices start at £599 inc VAT for Stage 1 on a BMW M2. Each engine in the table shows its own price, and adding gearbox tuning at the same time saves £125. Bumper 0% finance over 6 months and Klarna are both available.
Will my BMW M2 need unlocking before it can be tuned?
BMW models built from roughly mid-2020 have an encrypted ECU that must be unlocked first. It is done here rather than sent away. Check your registration to see whether your particular car needs it. Check if your ECU is locked ›
Do I need any hardware for Stage 2 on a BMW M2?
A decat or sports cat downpipe and an uprated intercooler. Stage 2 is not something we can map safely on a standard car, so without the hardware we would fit Stage 1 and you can step up once it is fitted.
Does a remap invalidate the warranty or insurance on a BMW M2?
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.
How long will my BMW M2 be with you, and can it be undone?
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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