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Home › Tuning Figures › All Models › BMW 1-Series

BMW Tuning

BMW 1 Series Stage 1 Remap

Typical before and after power and torque for every BMW 1 Series engine we tune. Your own car is custom mapped on our in-house 4WD dyno, and every map is fully reversible.

BMW 1 Series 114i power & torque delivery

Power & torqueindicative curve, scaled to the published figures
220 bhp from 102+118 bhp310 Nm from 180+130 Nm
240 bhp from 102+138 bhp330 Nm from 180+150 Nm
751001502002253003004001000200030004000500060007000bhpNmRPM310 Nm220 bhp330 Nm240 bhp
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
220 bhp from 102+118 bhp310 Nm from 180+130 Nm
240 bhp from 102+138 bhp330 Nm from 180+150 Nm
751001502002253003004001k2k3k4k5k6k7kbhpNmRPM310 Nm220 bhp330 Nm240 bhp
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.

F70 (2024 onwards)

EngineStandardStage 1custom dyno tuningStage 2custom dyno tuningPrice
123 xDrive1998cc - B48 mild hybrid · Petrol218 bhp
360 Nm
270 bhp+52
420 Nm+60
—Stage 1 + ECU unlock£549Includes the £100 ECU unlock · same day, no extra time+ gearbox £385
S1 + gearbox £809 ›
Book
M135 xDrive1998cc - B48 · Petrol300 bhp
400 Nm
335 bhp+35
450 Nm+50
—Stage 1 + ECU unlock£699Includes the £100 ECU unlock · same day, no extra time+ gearbox £385
S1 + gearbox £959 ›
Book
120d1995cc - B47 mild hybrid · Diesel163 bhp
360 Nm
230 bhp+67
500 Nm+140
—Stage 1 + ECU unlock£549Includes the £100 ECU unlock · same day, no extra time+ gearbox £385
S1 + gearbox £809 ›
Book

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 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.

F40 (2019–2024)

EngineStandardStage 1custom dyno tuningStage 2custom dyno tuningPrice
118i1499cc - B38 · Petrol140 bhp
220 Nm
We don't tune this engine—
120i1998cc - B48 · Bosch MG1CS201 · Petrol184 bhp
280 Nm
260 bhp+76
420 Nm+140
—£449Built after June 2020? £549 with the £100 ECU unlock · same day, no extra time+ gearbox £385
S1 + gearbox £709 ›
Book
128ti1998cc - B48 · Bosch MG1CS201 · Petrol265 bhp
400 Nm
290 bhp+25
460 Nm+60
—£449Built after June 2020? £549 with the £100 ECU unlock · same day, no extra time+ gearbox £385
S1 + gearbox £709 ›
Book
M135i xDrive1998cc - B48 · Bosch MG1CS201 · Petrol306 bhp
450 Nm
335 bhp+29
500 Nm+50
—£599Built after June 2020? £699 with the £100 ECU unlock · same day, no extra time+ gearbox £385
S1 + gearbox £859 ›
Book
116d1496cc - B37 · Bosch MD1CS001 · Diesel116 bhp
270 Nm
150 bhp+34
330 Nm+60
—£449Built after June 2020? £549 with the £100 ECU unlock · same day, no extra time+ gearbox £385
S1 + gearbox £709 ›
Book
118d1995cc - B47 · Bosch MD1CS001 · Diesel150 bhp
350 Nm
190 bhp+40
420 Nm+70
—£449Built after June 2020? £549 with the £100 ECU unlock · same day, no extra time+ gearbox £385
S1 + gearbox £709 ›
Book
120d xDrive1995cc - B47 · Bosch MD1CS001 · Diesel190 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

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

F20 LCI (2015–2019)

EngineStandardStage 1custom dyno tuningStage 2custom dyno tuningPrice
116i1499cc - B38A15 · Petrol109 bhp
180 Nm
We don't tune this engine—
118i1598cc - N13B16 · Petrol170 bhp
250 Nm
220 bhp+50
310 Nm+60
240 bhp+70
330 Nm+80
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
120i1598cc - N13B16 · Petrol177 bhp
250 Nm
220 bhp+43
310 Nm+60
—£449+ gearbox £325
S1 + gearbox £649 ›
Book
120iPetrol184 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
125i1997cc - N20B20 · Petrol218 bhp
310 Nm
290 bhp+72
450 Nm+140
—£449+ gearbox £325
S1 + gearbox £649 ›
Book
125iPetrol224 bhp
310 Nm
310 bhp+86
470 Nm+160
—£449+ gearbox £325
S1 + gearbox £649 ›
Book
M135i2979cc - N55B30 · Petrol326 bhp
450 Nm
390 bhp+64
600 Nm+150
420 bhp+94
620 Nm+170
£599Stage 2 £749+ gearbox £325
S1 + gearbox £799 ›
S2 + gearbox £949 ›
Book
M140i2998cc - B58B30 · Petrol340 bhp
500 Nm
420 bhp+80
600 Nm+100
450 bhp+110
650 Nm+150
£599Stage 2 £749+ gearbox £325
S1 + gearbox £799 ›
S2 + gearbox £949 ›
Book
M140i (PP)2998cc - B58B30 · Petrol360 bhp
500 Nm
420 bhp+60
600 Nm+100
450 bhp+90
650 Nm+150
£599Stage 2 £749+ gearbox £325
S1 + gearbox £799 ›
S2 + gearbox £949 ›
Book
114d - 04/15 > ...1496cc - B37 · Diesel95 bhp
220 Nm
150 bhp+55
330 Nm+110
—£449+ gearbox £325
S1 + gearbox £649 ›
Book
114d1598cc - N47D16 · Diesel95 bhp
235 Nm
140 bhp+45
320 Nm+85
—£449+ gearbox £325
S1 + gearbox £649 ›
Book
116d1500cc - B37 · Diesel116 bhp
270 Nm
150 bhp+34
330 Nm+60
—£449+ gearbox £325
S1 + gearbox £649 ›
Book
118d1998cc - B47D20B · Bosch MD1CS001 · Diesel150 bhp
320 Nm
190 bhp+40
400 Nm+80
—£449+ gearbox £325
S1 + gearbox £649 ›
Book
120d1998cc - B47D20B · Diesel163 bhp
380 Nm
230 bhp+67
500 Nm+120
240 bhp+77
520 Nm+140
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
120d1998cc - B47D20B · Bosch MD1CS001 · Diesel190 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
125d1998cc - B47D20B · Diesel211 bhp
450 Nm
270 bhp+59
500 Nm+50
—£449+ gearbox £325
S1 + gearbox £649 ›
Book
125d1995cc - B47D20B · Bosch MD1CS001 · Diesel224 bhp
450 Nm
270 bhp+46
500 Nm+50
280 bhp+56
520 Nm+70
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book

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

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

F20 (2011–2015)

EngineStandardStage 1custom dyno tuningStage 2custom dyno tuningPrice
114i1598cc - N13B16 · Petrol102 bhp
180 Nm
220 bhp+118
310 Nm+130
240 bhp+138
330 Nm+150
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
116i1598cc - N13B16 · Petrol136 bhp
220 Nm
220 bhp+84
310 Nm+90
240 bhp+104
330 Nm+110
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
118i1598cc - N13B16 · Petrol170 bhp
250 Nm
220 bhp+50
310 Nm+60
240 bhp+70
330 Nm+80
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
125i1997cc - N20B20 · Petrol218 bhp
310 Nm
290 bhp+72
450 Nm+140
310 bhp+92
480 Nm+170
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
125i MPP1997cc - N20B20 · Petrol238 bhp
330 Nm
290 bhp+52
450 Nm+120
310 bhp+72
480 Nm+150
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
M135i - ... < 07/132979cc - N55B30 - pneumatic wastegate · Petrol320 bhp
450 Nm
380 bhp+60
580 Nm+130
—£599+ gearbox £325
S1 + gearbox £799 ›
Book
M135i - 07/13 > '152979cc - N55B30 - electronic wastegate · Petrol320 bhp
450 Nm
390 bhp+70
600 Nm+150
—£599+ gearbox £325
S1 + gearbox £799 ›
Book
114d1598cc - N47D16 · Diesel95 bhp
235 Nm
150 bhp+55
320 Nm+85
160 bhp+65
330 Nm+95
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
116d1598cc - N47D16 · Diesel116 bhp
260 Nm
150 bhp+34
320 Nm+60
160 bhp+44
330 Nm+70
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
118d1995cc - N47D20 · Diesel136 bhp
320 Nm
190 bhp+54
400 Nm+80
205 bhp+69
420 Nm+100
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
118d1995cc - N47D20 · Diesel143 bhp
320 Nm
190 bhp+47
400 Nm+80
205 bhp+62
420 Nm+100
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
120d1995cc - N47D20 · Bosch MD1CS001 · Diesel163 bhp
380 Nm
230 bhp+67
500 Nm+120
240 bhp+77
520 Nm+140
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
120d1995cc - N47D20 · Diesel184 bhp
380 Nm
230 bhp+46
500 Nm+120
240 bhp+56
520 Nm+140
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
120d PP1995cc - N47D20 · Diesel200 bhp
420 Nm
230 bhp+30
500 Nm+80
240 bhp+40
520 Nm+100
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
125d1995cc - N47D20 · Bosch MD1CS001 · Diesel211 bhp
450 Nm
270 bhp+59
500 Nm+50
285 bhp+74
520 Nm+70
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
125d1995cc - N47D20 · Diesel218 bhp
450 Nm
270 bhp+52
500 Nm+50
285 bhp+67
520 Nm+70
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book

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

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

E87 (2007–2011)

EngineStandardStage 1custom dyno tuningStage 2custom dyno tuningPrice
116iPetrol122 bhp
185 Nm
137 bhp+15
200 Nm+15
—£449+ gearbox £325
S1 + gearbox £649 ›
Book
125iPetrol211 bhp
250 Nm
279 bhp+68
340 Nm+90
—£449+ gearbox £325
S1 + gearbox £649 ›
Book
125iPetrol218 bhp
250 Nm
279 bhp+61
340 Nm+90
—£449+ gearbox £325
S1 + gearbox £649 ›
Book
128iPetrol228 bhp
271 Nm
279 bhp+51
340 Nm+69
—£449+ gearbox £325
S1 + gearbox £649 ›
Book
130iPetrol258 bhp
315 Nm
279 bhp+21
340 Nm+25
—£449+ gearbox £325
S1 + gearbox £649 ›
Book
130iPetrol265 bhp
315 Nm
279 bhp+14
340 Nm+25
—£449+ gearbox £325
S1 + gearbox £649 ›
Book
135i - N54Petrol306 bhp
400 Nm
370 bhp+64
500 Nm+100
390 bhp+84
520 Nm+120
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
135i - N55 TwinscrollPetrol306 bhp
400 Nm
365 bhp+59
520 Nm+120
385 bhp+79
540 Nm+140
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
135i - N54 - PPKPetrol326 bhp
450 Nm
370 bhp+44
500 Nm+50
390 bhp+64
520 Nm+70
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
1M - 3.0i BiturboPetrol340 bhp
500 Nm
375 bhp+35
560 Nm+60
400 bhp+60
580 Nm+80
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
116dDiesel115 bhp
260 Nm
180 bhp+65
400 Nm+140
190 bhp+75
420 Nm+160
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
118dDiesel136 bhp
300 Nm
180 bhp+44
400 Nm+100
190 bhp+54
420 Nm+120
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
118dDiesel143 bhp
300 Nm
180 bhp+37
400 Nm+100
190 bhp+47
420 Nm+120
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
120dDiesel163 bhp
350 Nm
220 bhp+57
420 Nm+70
230 bhp+67
435 Nm+85
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
120dDiesel177 bhp
350 Nm
220 bhp+43
420 Nm+70
230 bhp+53
435 Nm+85
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
120d performance packageDiesel197 bhp
390 Nm
230 bhp+33
440 Nm+50
—£449+ gearbox £325
S1 + gearbox £649 ›
Book
123dDiesel204 bhp
400 Nm
245 bhp+41
450 Nm+50
255 bhp+51
460 Nm+60
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
123d (May 2010)Diesel204 bhp
400 Nm
260 bhp+56
480 Nm+80
270 bhp+66
495 Nm+95
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book

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

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

E81 (2005–2007)

EngineStandardStage 1custom dyno tuningStage 2custom dyno tuningPrice
116iPetrol115 bhp
150 Nm
127 bhp+11
166 Nm+16
—£449+ gearbox £325
S1 + gearbox £649 ›
Book
135i - N54Petrol306 bhp
400 Nm
370 bhp+64
500 Nm+100
390 bhp+84
520 Nm+120
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
118dDiesel122 bhp
280 Nm
150 bhp+28
340 Nm+60
160 bhp+38
350 Nm+70
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
120dDiesel150 bhp
340 Nm
200 bhp+50
420 Nm+80
—£449+ gearbox £325
S1 + gearbox £649 ›
Book
120dDiesel163 bhp
340 Nm
220 bhp+57
420 Nm+80
230 bhp+67
435 Nm+95
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book

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

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 1-Series 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 1-Series remapping questions

How much power will a Stage 1 remap add to a BMW 1-Series?
Every BMW 1-Series engine is different, which is why they are listed separately above. At the top end the 114i picks up 118bhp, going 102bhp to 220bhp with torque up to 310Nm.
How much is Stage 1 tuning on a BMW 1-Series?
A BMW 1-Series 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 1-Series?
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 1-Series 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 1-Series?
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. 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 payKlarnawhen 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.