Mercedes-Benz G-Class Remap & BHP Figures

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W463A (2018–2024)W463 (1990–2018)

Mercedes-Benz G-Class G 63 AMG power & torque delivery

Power & torqueindicative curve, scaled to the published figures

Stage 1

660 bhp from 544+116 bhp1100 Nm from 760+340 Nm

Tuned bhpTuned NmStock bhpStock Nm

Shape is indicative. Your real before & after curves are measured on our 4WD dyno on the day and you take the printout home.

Power & torqueindicative curve, scaled to the published figures

Stage 1

660 bhp from 544+116 bhp1100 Nm from 760+340 Nm

Tuned bhpTuned NmStock bhpStock Nm

Shape is indicative. Your real before & after curves are measured on our 4WD dyno on the day and you take the printout home.

W463A (2018–2024)

Engine	Standard	Stage 1custom dyno tuning	Stage 2custom dyno tuning	Price
G 350 2.01991cc · Petrol	258 bhp 370 Nm	275 bhp+17 450 Nm+80	—	£549	Book
G 5003982cc · Petrol	422 bhp 610 Nm	510 bhp+88 820 Nm+210	—	£699	Book
G 63 AMG3982cc · Petrol	585 bhp 850 Nm	660 bhp+75 1100 Nm+250	—	£999	Book
G 350d 3.02925cc · Diesel	286 bhp 600 Nm	380 bhp+94 800 Nm+200	—	£549	Book
G 400d 3.02925cc · Diesel	330 bhp 700 Nm	380 bhp+50 820 Nm+120	—	£549	Book

W463 (1990–2018)

Engine	Standard	Stage 1custom dyno tuning	Stage 2custom dyno tuning	Price
G 5003982cc · Petrol	421 bhp 610 Nm	500 bhp+79 820 Nm+210	—	£699	Book
G 55 AMG5439cc · Petrol	476 bhp 700 Nm	540 bhp+64 820 Nm+120	—	£999	Book
G 55 AMG5439cc · Petrol	500 bhp 700 Nm	540 bhp+40 820 Nm+120	—	£999	Book
G 63 AMG5461cc · Petrol	544 bhp 760 Nm	660 bhp+116 1100 Nm+340	—	£999	Book
G 63 AMG5461cc · Petrol	571 bhp 760 Nm	660 bhp+89 1100 Nm+340	—	£999	Book
G 65 AMG5980cc · Petrol	612 bhp 1000 Nm	670 bhp+58 1100 Nm+100	—	£1299	Book
G 270 CDI2685cc · Diesel	156 bhp 400 Nm	190 bhp+34 480 Nm+80	—	£549	Book
G 300 CDI2987cc · Diesel	184 bhp 400 Nm	260 bhp+76 600 Nm+200	—	£549	Book
G 320 CDI2987cc · Diesel	211 bhp 540 Nm	260 bhp+49 600 Nm+60	—	£549	Book
G 350 CDI2987cc · Diesel	211 bhp 540 Nm	275 bhp+64 600 Nm+60	—	£549	Book
G 320 CDI2987cc · Diesel	224 bhp 540 Nm	275 bhp+51 620 Nm+80	—	£549	Book
G 350 CDI2987cc · Diesel	224 bhp 540 Nm	275 bhp+51 600 Nm+60	—	£549	Book
G 350 CDI2987cc · Diesel	245 bhp 600 Nm	280 bhp+35 650 Nm+50	—	£549	Book
G 400 CDI3996cc · Diesel	250 bhp 560 Nm	290 bhp+40 650 Nm+90	—	£549	Book

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 G-Class 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, timing, fuelling and temperatures all watched in real time under load: knock on the petrols, rail pressure and exhaust temps on the diesels.
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 £91.50/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 G-Class remapping questions

What gains can I expect from Stage 1 on a Mercedes-Benz G-Class?

It depends which engine you have. Across the 19 Mercedes-Benz G-Class engines we tune, the G 63 AMG sees the biggest Stage 1 gain: 544bhp to 660bhp and 760Nm to 1100Nm, up 116bhp. Every figure on this page is for that exact engine.

How much does it cost to remap a Mercedes-Benz G-Class?

Stage 1 custom dyno tuning on a Mercedes-Benz G-Class starts at £549. You can spread it over 6 months at 0% with Bumper, or choose Pay in full when you book and pay with Klarna.

Will remapping my Mercedes-Benz G-Class affect my warranty or insurance?

You will need to tell your insurer, as with any modification, and it can affect a remaining manufacturer warranty. Every map is reversible, so the Mercedes-Benz G-Class can be put back to its factory software at any point.

How long does it take, and is it reversible?

Allow roughly two hours for Stage 1, including any ECU unlock on our own bench. Everything is reversible: the Mercedes-Benz G-Class can go back to its factory software on request.

Ways to pay

when you pay in full0% finance over 6 monthsCard & Apple Pay£50 deposit secures your slotHow finance works ›

Other Mercedes-Benz models

A-Class AMG GT AMG GT 4-Door Coupe B-Class C-Class Citan CL-Class CLA CLC-Class CLK CLS E-Class GL-Class GLA GLB GLC GLE GLS M-Class R-Class S-Class SL SLC SLK SLS AMG Sprinter V-Class Vaneo Viano Vito X-Class All models ›

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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