BMW Z3 Remap Figures

Before and after power and torque for every BMW Z3 engine we tune, measured on our in-house 4WD dyno. Every map is written for your exact car and is fully reversible.

BMW Z3 20 power & torque delivery

Power & torque deliveryindicative shape · scaled to your peak figures · RPM

Stock bhpStock NmStage 1 bhpStage 1 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 & torque deliveryindicative shape · scaled to your peak figures · RPM

Stock bhpStock NmStage 1 bhpStage 1 Nm

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

All years

Engine	Standard	Stage 1custom dyno tuning	Stage 2custom dyno tuning	Price
18Petrol	118 bhp 180 Nm	129 bhp+11 220 Nm+40	—	£449+ gearbox £325 S1 + gearbox £649 ›	Book
19Petrol	140 bhp 180 Nm	150 bhp+10 196 Nm+16	—	£449+ gearbox £325 S1 + gearbox £649 ›	Book
20Petrol	150 bhp 190 Nm	165 bhp+15 210 Nm+20	—	£449+ gearbox £325 S1 + gearbox £649 ›	Book
22Petrol	170 bhp 210 Nm	185 bhp+15 235 Nm+25	—	£449+ gearbox £325 S1 + gearbox £649 ›	Book
28Petrol	193 bhp 280 Nm	205 bhp+12 310 Nm+30	—	£449+ gearbox £325 S1 + gearbox £649 ›	Book
30Petrol	231 bhp 300 Nm	242 bhp+11 320 Nm+20	—	£449+ gearbox £325 S1 + gearbox £649 ›	Book
M 3.2Petrol	325 bhp 350 Nm	340 bhp+15 380 Nm+30	—	£449+ gearbox £325 S1 + gearbox £649 ›	Book

Every price on this page is a full custom dyno tune

Not a generic file bought in and flashed over the port. Your BMW Z3 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 £74.84/mo over 6 months at 0% APR, interest free. Or 3 interest-free payments of £149.67 with Klarna. How finance works ›
Book engine and gearbox tuning together and save £125.

BMW Z3 remapping questions

How much power will a Stage 1 remap add to a BMW Z3?

It depends which engine you have. Across the 7 BMW Z3 engines we tune, the 20 sees the biggest Stage 1 gain: 150bhp to 165bhp and 190Nm to 210Nm, up 15bhp. Every figure on this page is for that exact engine.

How much does it cost to remap a BMW Z3?

Stage 1 custom dyno tuning on a BMW Z3 starts at £449 inc VAT, and gearbox tuning is £325. Book both together and you save £125. You can spread it over 6 months at 0%, or pay in 3 interest-free instalments with Klarna.

Does my BMW Z3 need its ECU unlocking?

If it was built from around June 2020 onwards, yes. Those ECUs are locked from the factory and have to be unlocked before anything can be written. We do it in-house. Check your registration and we will tell you straight away whether yours is affected. Check if your ECU is locked ›

Will remapping my BMW Z3 affect my warranty or insurance?

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 and we keep your original file, so the car can be returned to stock whenever you need.

How long does it take, and is it reversible?

Most Stage 1 tunes take around two hours, and cars needing ECU unlocking are booked as a 4-hour half-day. It is completely reversible, and your factory file is saved before we touch anything.

Ways to pay

3 interest-free payments0% finance over 6 monthsCard & Apple Pay£50 deposit secures your slotHow finance works ›

Other BMW models

1-Series 1M Coupé 2-Series 2-Series Grand/Active Tourer 3-Series 4-Series 5-Series 6-Series 6-Series Gran Coupe 6-Series Gran Turismo 7-Series 8-Series i8 M2 M3 M4 M5 M6 M8 X1 X2 X3 X4 X5 X5 M X6 X6 M X7 Z1 Z4 Z8 All models ›

Whichever you pick, the total carries through to checkout, so pay in full by card, Apple Pay or Klarna (3 interest-free payments), or secure the slot with a £50 deposit. Figures are typical results for a healthy, standard vehicle on our dyno. 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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