Volkswagen
Golf R Mk8 2.0 TSI
Stage 1, standard hardware
Power bhp320 → 420
Torque Nm420 → 500
+31%
Results
Measured, on our own dyno
Every figure below is a car that went on the dyno here, before and after, on the same afternoon. Where a car made less than we hoped, that is the number on the page.
Before and afterSame car, same dyno, same day
Nothing modelledNo percentages applied to brochures
Printouts includedYou take both away
What will mine make?
Your car is in the same database these came from.
No obligation. We price it before anything is touched.
7,400
engines mapped
In this workshop since 2014
2,000
bhp rated
Our four-wheel rolling road
100%
measured
Every figure on this page came off it
0
files bought in
Written here, against our own data
Measured here
Recent work
Filter by the kind of job. Every row is one car, one visit, two dyno runs.
BMW
M140i F2X 3.0
Stage 1, standard hardware
Power bhp340 → 430
Torque Nm500 → 620
+26%
Audi
S3 8Y 2.0 TFSI
Stage 1, standard hardware
Power bhp310 → 400
Torque Nm400 → 490
+29%
Volkswagen
Golf GTD 2.0 TDI
Stage 1, economy bias
Power bhp184 → 225
Torque Nm380 → 450
+22%
BMW
330d F30 3.0
Stage 1, standard hardware
Power bhp258 → 320
Torque Nm560 → 680
+24%
Ford
Transit Custom 2.0
Stage 1, drivability and mpg
Power bhp130 → 190
Torque Nm385 → 480
+46%
Mercedes
Sprinter 2.1 CDI
Stage 1, fleet vehicle
Power bhp163 → 205
Torque Nm360 → 440
+26%
Volkswagen
Golf R DSG
Engine and DSG calibration
Power bhp320 → 420
Torque Nm420 → 500
+31%
BMW
M140i ZF 8-speed
Engine and ZF calibration
Power bhp340 → 430
Torque Nm500 → 620
+26%
How to read it
A dyno graph is easy to fake if nobody explains it
Two runs on one chart, standard in grey and mapped in red. What matters is not the height of the peak — it is the shape between the two lines, and whether both runs were done on the same day in the same conditions.
We print both and go through them with you before you pay. If the gain is all in a narrow band at the top, you will barely feel it on the road, and we will say so.
Peak figure
The headline number. The least useful thing on the chart.
Area under it
Where the car actually feels quicker in normal driving.
Same conditions
Both runs, one session. Otherwise it is two unrelated charts.
Why every car on this page is one of ours
It would be quicker to fill a tuning gallery with figures from a file supplier's brochure, and a great deal of the trade does exactly that. The problem is that this is the only page making a checkable claim.
Somebody with the same car will ring and ask what theirs made. If the number came from a spreadsheet rather than our dyno, that conversation ends the relationship. So the rule is simple: if it did not go on our dyno, it does not go on this page.
It does mean the list grows slowly and it includes results we were not thrilled with. A Golf that made 398 instead of the 420 we expected is still on here, because taking it off would make every other row worth less.
On percentages: a gain quoted as a percentage of a manufacturer's claimed output is not a measurement. Manufacturers under-declare and over-declare, and the car in front of you may never have made the brochure figure in the first place. That is exactly why we measure yours before we touch it.
What owners say
4.9 from 380+ reviews
★★★★★
Watched it on the dyno, took the printouts home, and the second one matches what the car actually feels like. First time I have had that.
Tom EllisGolf R · Nottingham
★★★★★
Mine made less than they thought it would and they told me why rather than quietly printing a different number. Ended up spending more with them because of it.
Chris Mayhew330d · Derby
★★★★★
Two vans done, both pull properly loaded now and the fuel figures have held up over six months. Third one booked.
Dave PickeringTransit · Mansfield
Where we work
Where we work
Software-only jobs we do at your address — driveway, office car park or yard. Anything that needs measuring comes to the unit, because a rolling road does not travel.
Tell us the job and we will say which one it is before you book.
Ready when you are
Want your car on this page?
Send the registration and what you want from it. We come back with the figures for your exact engine and a fixed price, usually the same day.
0115 496 0177