BMW X4 Remap: Stage 1 & 2 BHP Figures

Find your engine

G02 (2018–2025)F26 (2014–2018)

BMW X4 M power & torque delivery

Power & torqueindicative curve, scaled to the published figures

Stage 1

600 bhp from 480+120 bhp800 Nm from 600+200 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

600 bhp from 480+120 bhp800 Nm from 600+200 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.

G02 (2018–2025)

Engine	Standard	Stage 1custom dyno tuning	Stage 2custom dyno tuning	Price
xDrive 20iPetrol	184 bhp 290 Nm	260 bhp+76 400 Nm+110	—	£449Built after June 2020? £549 with the £100 ECU unlock · same day, no extra time+ gearbox £385 S1 + gearbox £709 ›	Book
xDrive 30iPetrol	252 bhp 350 Nm	310 bhp+58 470 Nm+120	—	£449Built after June 2020? £549 with the £100 ECU unlock · same day, no extra time+ gearbox £385 S1 + gearbox £709 ›	Book
M40iPetrol	354 bhp 500 Nm	420 bhp+66 600 Nm+100	450 bhp+96 650 Nm+150	£599Built after June 2020? £699 with the £100 ECU unlock · same day, no extra timeStage 2 £749+ gearbox £385 S1 + gearbox £859 › S2 + gearbox £1009 ›	Book
X4 M2993cc - S58 · Petrol	480 bhp 600 Nm	600 bhp+120 800 Nm+200	—	£699Built after June 2020? £799 with the £100 ECU unlock · same day, no extra time+ gearbox £385 S1 + gearbox £959 ›	Book
X4 M Competition2993cc - S58 Twin Turbo · Petrol	510 bhp 600 Nm	600 bhp+90 780 Nm+180	—	£699Built after June 2020? £799 with the £100 ECU unlock · same day, no extra time+ gearbox £385 S1 + gearbox £959 ›	Book
xDrive 20dBosch MD1CS001 · Diesel	190 bhp 400 Nm	230 bhp+40 500 Nm+100	240 bhp+50 520 Nm+120	£449Built after June 2020? £549 with the £100 ECU unlock · same day, no extra timeStage 2 £599+ gearbox £385 S1 + gearbox £709 › S2 + gearbox £859 ›	Book
xDrive 25dBosch MD1CP032 · Diesel	231 bhp 500 Nm	270 bhp+39 550 Nm+50	—	£449Built after June 2020? £549 with the £100 ECU unlock · same day, no extra time+ gearbox £385 S1 + gearbox £709 ›	Book
xDrive 30dBosch MD1CP032 · Diesel	265 bhp 620 Nm	330 bhp+65 720 Nm+100	—	£449Built after June 2020? £549 with the £100 ECU unlock · same day, no extra time+ gearbox £385 S1 + gearbox £709 ›	Book
xDrive 30d MHEV2993cc - B57 · Bosch MD1CP032 · Diesel	286 bhp 650 Nm	330 bhp+44 720 Nm+70	—	£449Built after June 2020? £549 with the £100 ECU unlock · same day, no extra time+ gearbox £385 S1 + gearbox £709 ›	Book
M40DBosch MD1CP032 · Diesel	326 bhp 680 Nm	360 bhp+34 730 Nm+50	—	£449Built after June 2020? £549 with the £100 ECU unlock · same day, no extra time+ gearbox £385 S1 + gearbox £709 ›	Book
M40d MHEV2993cc - B57 · Bosch MD1CP032 · Diesel	340 bhp 700 Nm	400 bhp+60 800 Nm+100	—	£449Built after June 2020? £549 with the £100 ECU unlock · same day, no extra time+ gearbox £385 S1 + gearbox £709 ›	Book

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 → Built from June 2026? Those cars use a new ECU lock that can’t yet be opened, so we can’t tune them for now. Email sales@dcremappinguk.com with your reg and we’ll let you know as soon as that changes.

Stage 2 Diesel supporting mods: DPF delete (off-road use only) + uprated intercooler.

Stage 2 Petrol supporting mods: decat or sports cat + uprated intercooler.

F26 (2014–2018)

Engine	Standard	Stage 1custom dyno tuning	Stage 2custom dyno tuning	Price
xDrive 20iPetrol	184 bhp 270 Nm	260 bhp+76 420 Nm+150	280 bhp+96 450 Nm+180	£449Stage 2 £599+ gearbox £325 S1 + gearbox £649 › S2 + gearbox £799 ›	Book
xDrive 28iPetrol	245 bhp 350 Nm	290 bhp+45 450 Nm+100	310 bhp+65 480 Nm+130	£449Stage 2 £599+ gearbox £325 S1 + gearbox £649 › S2 + gearbox £799 ›	Book
xDrive 35iPetrol	306 bhp 400 Nm	365 bhp+59 520 Nm+120	—	£449+ gearbox £325 S1 + gearbox £649 ›	Book
xDrive 35iPetrol	326 bhp 450 Nm	380 bhp+54 520 Nm+70	—	£449+ gearbox £325 S1 + gearbox £649 ›	Book
xDrive M40iPetrol	360 bhp 465 Nm	380 bhp+20 520 Nm+55	—	£599+ gearbox £325 S1 + gearbox £799 ›	Book
xDrive 20dDiesel	190 bhp 400 Nm	230 bhp+40 500 Nm+100	240 bhp+50 520 Nm+120	£449Stage 2 £599+ gearbox £325 S1 + gearbox £649 › S2 + gearbox £799 ›	Book
xDrive 30dDiesel	211 bhp 500 Nm	300 bhp+89 600 Nm+100	—	£449+ gearbox £325 S1 + gearbox £649 ›	Book
xDrive 30dDiesel	258 bhp 560 Nm	330 bhp+72 690 Nm+130	340 bhp+82 720 Nm+160	£449Stage 2 £599+ gearbox £325 S1 + gearbox £649 › S2 + gearbox £799 ›	Book
xDrive 35dDiesel	313 bhp 630 Nm	390 bhp+77 780 Nm+150	400 bhp+87 810 Nm+180	£449Stage 2 £599+ gearbox £325 S1 + gearbox £649 › S2 + gearbox £799 ›	Book

Stage 2 Petrol supporting mods: decat or sports cat + uprated intercooler.

Stage 2 Diesel supporting mods: DPF delete (off-road use only) + 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 X4 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 £74.83/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 X4 remapping questions

What does Stage 1 tuning do for a BMW X4?

Every BMW X4 engine is different, which is why they are listed separately above. At the top end the X4 M picks up 120bhp, going 480bhp to 600bhp with torque up to 800Nm.

How much is Stage 1 tuning on a BMW X4?

A BMW X4 Stage 1 is from £449 inc VAT; gearbox software is £325–£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 X4?

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 supporting mods does a BMW X4 need for Stage 2?

It depends on fuel. Diesels need a DPF delete (off-road use only) and an uprated intercooler; petrols need a decat or sports cat downpipe plus an uprated intercooler. Stage 2 cannot be mapped safely on a standard car, so if yours has no supporting hardware we will fit Stage 1 instead.

What happens to my warranty and insurance if I tune my BMW X4?

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 BMW X4 can be put back to its factory software at any point.

Can the remap be reversed, and how long does it take?

Allow roughly two hours for Stage 1. A locked ECU is unlocked in-house on the same visit without a longer appointment. Everything is reversible: the BMW X4 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 BMW 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 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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