Typical before and after power and torque for every Mercedes-Benz AMG GT 4-Door Coupe 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 Mercedes-Benz AMG GT 4-Door Coupe 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 £133.17/mo over 6 months at 0% APR with Bumper, interest free. Split your purchase into 3 interest-free instalments with Klarna. Borrowing more than you can afford or paying late may negatively impact your financial status and ability to obtain credit. Subject to status. Ts&Cs and late fees apply. For Klarna, choose Pay in full when you book. How finance works ›
Mercedes-Benz AMG GT 4-Door Coupe remapping questions
How much bhp does a Mercedes-Benz AMG GT 4-Door Coupe gain from a remap?
Every Mercedes-Benz AMG GT 4-Door Coupe engine is different, which is why they are listed separately above. At the top end the AMG GT 63 4.0 V8 Bi-Turbo picks up 65bhp, going 585bhp to 650bhp with torque up to 850Nm.
How much is Stage 1 tuning on a Mercedes-Benz AMG GT 4-Door Coupe?
A Mercedes-Benz AMG GT 4-Door Coupe Stage 1 is from £799. Finance is 0% over 6 months with Bumper, or choose Pay in full when you book and pay with Klarna.
What happens to my warranty and insurance if I tune my Mercedes-Benz AMG GT 4-Door Coupe?
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, and if the ECU needs unlocking we do that on our own bench during the same visit, with no extra time. 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; locked ECUs (most BMW and Audi registered from mid-2020) carry an additional unlocking charge, confirmed when you book.
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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 · 15+ years
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BMW & VAG specialists · Warrington
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