4.9 · 259+ reviews
Pay with Klarna · ★ 4.9 · 259+ Google reviews · In-house 4WD dyno · before & after printout · BMW ECU unlocking · in-house, same day · 0% finance with Bumper · spread it over 6 months · 10,000+ vehicles tuned · 14+ years · BMW & VAG specialists · Warrington · Pay with Klarna · ★ 4.9 · 259+ Google reviews · In-house 4WD dyno · before & after printout · BMW ECU unlocking · in-house, same day · 0% finance with Bumper · spread it over 6 months · 10,000+ vehicles tuned · 14+ years · BMW & VAG specialists · Warrington ·
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Dyno Results Library

Real Dyno Results

Every figure on this page is from a real run on our own in-house 4WD dyno in Warrington.

  • 49Real dyno runs
  • 5Makes
  • +120.5bhp, biggest gainBMW M550i xDrive

Showing 46 cars · 49 dyno runs

BMW 335d xDrive

F30 · N57 3.0 diesel

Stage 1+ xHP ST3
Power
310.4→388.7bhp
+78.3 bhp
Torque
612→775Nm
+163 Nm
Arrived with a previous remap: 360.3 bhp · 711 Nm
See BMW 35d tuning →Build story

BMW 420d Coupé

F32 · 2014 · N47 2.0 diesel · manual

Stage 1
Power
184.4→232.0bhp
+47.6 bhp
Torque
394→490Nm
+96 Nm
See BMW 20d tuning →Build story

BMW 435d xDrive

4 Series · N57 3.0 twin-turbo diesel

Stage 1+ xHP ST3
Power
305.1→389.2bhp
+84.1 bhp
Torque
624→770Nm
+146 Nm
See BMW 35d tuning →Build story

BMW 740d xDrive

G11/G12 · B57 3.0 diesel

Stage 1
Power
312.7→399.1bhp
+86.4 bhp
Torque
679→808Nm
+129 Nm
See BMW 40d tuning →

BMW 745e

G11/G12 · 3.0 plug-in hybrid

Stage 1
Power
394.5→514.5bhp
+120.0 bhp
Torque
577→811Nm
+234 Nm
See BMW 45e tuning →

BMW M550i xDrive

G30 · 2021 · 4.4 twin-turbo V8 petrol · 95 RON

Stage 1+ xHP ST3
Power
514.9→635.4bhp
+120.5 bhp
Torque
783→922Nm
+139 Nm
See BMW 5 Series tuning →Build story

BMW X3 M40d

G01 · B57 3.0 diesel

Stage 1+ xHP ST3
Power
324.9→404.4bhp
+79.5 bhp
Torque
686→805Nm
+119 Nm
All 4 X3 M40d runs on our dyno
SheetbhpNm
324.9 → 404.4686 → 805
326.0 → 402.5688 → 807
322.2 → 400.6690 → 799
320.0 → 405.7674 → 799
See BMW X3 M40d tuning →Build story

BMW X5 xDrive40d

G05 · 2022 · B57 3.0 twin-turbo mild-hybrid diesel

Stage 1+ xHP ST3
Power
335.0→405.9bhp
+70.9 bhp
Torque
727→843Nm
+116 Nm
See BMW X5 40d tuning →Build story

Audi A5 Sportback

B9 · 3.0 TDI V6 quattro

Stage 1+ TCU
Power
291.3→352.7bhp
+61.4 bhp
Torque
619→749Nm
+130 Nm
See Audi A5 tuning →

Audi Q7

4M · 3.0 TDI

Stage 1+ TCU
Power
271.1→329.3bhp
+58.2 bhp
Torque
571→682Nm
+111 Nm
See Audi Q7 tuning →

Audi S3

8Y · 2.0 TFSI

Stage 1
Power
315.0→388.0bhp
+73.0 bhp
Torque
418→548Nm
+130 Nm
See Audi S3 tuning →
Can't see your car? Every Car We Tune Gets Its Own Printout We add new sheets as cars go over the dyno. See the expected gains and price for your exact engine now. Check My Car →

How We Measure

Same Dyno. Real Printouts. Before & After.

No borrowed numbers and no brochure figures. Tap any graph above to see the full printout.

  • 01

    Same dyno

    Every run is on our in-house 4WD linked rolling road in Warrington, so xDrive, quattro and 4Motion cars are measured properly.

  • 02

    Before and after

    We run the car on its standard software first, then again once the tune is on, on the same dyno.

  • 03

    Straight off the sheet

    The numbers are the engine power and torque printed on the sheet, to one decimal place. We never round them up.

  • 04

    Your car, your printout

    Condition, fuel and existing mods all play a part, so your car gets its own runs and its own before-and-after sheet to take home.

What Will Your Car Make?

Check the expected gains and price for your exact engine, then book it in for your own before-and-after runs.

Check My Car Book Now

★ 4.9 · 259+ Google reviews