4.9★★★★★ 380+ reviews Mon–Fri 08:30–17:30 · Sat 09:00–13:00 0115 496 0177 bookings@redlineperformance.co.uk
Black classic muscle car on a rolling road dyno, rear tyres smoking, in a clean modern tuning workshop
Independent · Nottingham · since 2014

Every figure
came off our own dyno.

Stage 1 and Stage 2 remapping, gearbox tuning and rolling road sessions. We measure your car before we touch it, and again afterwards, and you leave with both printouts.

30-day money backOriginal file kept
4WD rolling roadMeasured, not claimed
7,400 enginesMapped in this workshop

What will mine make?

Send the reg and we come back with the figures for your exact engine and a fixed price. Usually the same day.

Get my figures

No obligation. We price it before anything is touched.

One registrationFree, and we need no details from you Stages, figures and price for your exact engine. Dyno time on its own, with printed runs. DSG, S tronic and ZF calibration. Drivability and mpg, priced per vehicle.
Select a make
Select a model
Get my figures
Measured this month

What these actually made

Standard against Stage 1 software, no hardware, measured the same day on the same dyno.

Volkswagen Golf R Mk8 01
VW Golf R Mk8 — the named car, side or rear three-quarter
Volkswagen

Golf R Mk8

Stage 1 software, standard hardware
Power bhp320 → 420
Torque Nm420 → 500
£345
BMW M140i F2X 02
BMW M140i — the named car, side or rear three-quarter
BMW

M140i F2X

Stage 1 software, standard hardware
Power bhp340 → 430
Torque Nm500 → 620
£395
Audi S3 8Y 2.0 TFSI 03
Audi S3 — the named car, side or rear three-quarter
Audi

S3 8Y 2.0 TFSI

Stage 1 software, standard hardware
Power bhp310 → 400
Torque Nm400 → 490
£345
Ford Transit Custom 2.0 04
Ford Transit Custom — the named car, side or rear three-quarter
Ford

Transit Custom 2.0

Stage 1 software, standard hardware
Power bhp130 → 190
Torque Nm385 → 480
£325
2,000
bhp rated

Our four-wheel rolling road, in house

7,400
engines mapped

Files written in this workshop since 2014

2 hrs
typical Stage 1

In and out the same day, most cars

30 days
money back

Not happy? The original file goes back on

Figures calculator

What will yours make?

Put the registration in. If we have had one of these on our dyno you will see what it actually made. If we have not, you will see the range that kind of engine usually gives, and we will say so.

Volkswagen Golf R Petrol · 1984cc · 2019 Measured here

Stage 1 · software only

Power320 → 420 bhp
Torque420 → 500 Nm
£345fixed, dyno runs included

Measured on our own dyno, standard hardware, same day.

Stage 2 · software plus hardware

PowerOn enquiry
TorqueOn enquiry
£1,850from, with the full parts list

Stage 2 depends entirely on which parts are on the car, so we will not publish a figure for it. Bring it in and we will measure what it makes first.

Every published figure came off our own four-wheel dyno. Vehicle details come from the DVSA record. Contains public sector information licensed under the Open Government Licence v3.0.

Find your car

Tuning by make

Pick the badge and we will show the stages, the figures and the price for your exact engine.

Audi tuning
AudiSee figures
BMW tuning
BMWSee figures
Ford tuning
FordSee figures
Mercedes tuning
MercedesSee figures
VW tuning
VWSee figures
Seat tuning
SeatSee figures
Skoda tuning
SkodaSee figures
Cupra tuning
CupraSee figures
Vauxhall tuning
VauxhallSee figures
Toyota tuning
ToyotaSee figures
Porsche tuning
PorscheSee figures
Land Rover tuning
Land RoverSee figures
The stages

Stage 1 and Stage 2 — what actually changes

There is no industry standard for the stages, so every tuner draws the line somewhere different. Here is where we draw ours.

Stage 1Software onlyStage 2Software plus hardware
What changesSoftware only. Nothing is bolted on.Software plus the parts that let it breathe — intercooler, intake, exhaust.
Typical gain15–30% on a turbo petrol. More on a diesel, because there is more torque to release.Past what the standard hardware allows.
TimeOne visit, usually the same day.Two visits — parts fitted, then mapped and measured.
ReversibleYes. Your original file is kept and goes back on.Software yes. The parts stay on the car.
Price£345From £1,850 with the full parts list
Best forAlmost everyone who asks us.Owners keeping the car who want the next step.
tuner's hands on a laptop in a car
Why it matters

Real figures.
Not guesswork.

Plenty of places will sell you a map off a laptop in a car park. Every car here goes on the ramp for a health check before anybody opens the ECU, and on the dyno before and after so the numbers are measured rather than quoted.

  • Health check and fault-code scan before we touch the software
  • Before and after runs on our own four-wheel dyno, printed
  • Your original file kept on record and reinstated free within 30 days
  • If the hardware is the limit, we say so instead of selling you a Stage 2
How we work
What owners say

4.9 from 380+ reviews

★★★★★

Booked in for a Stage 1 and came away with the before and after printouts. No guesswork, no salesman — just the numbers.

Tom EllisGolf R · Nottingham
★★★★★

They told me my intercooler was the limit before I spent anything on an exhaust. Saved me about six hundred quid.

Sam OkoroM140i · Derby
★★★★★

Van does the same run on noticeably less fuel and pulls properly up the A38. Paid for itself inside four months.

Dave PickeringTransit · Mansfield
Where our cars come from

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

Tell us the reg.
We will tell you the numbers.

Send the registration and what you want from the car — more poke, better mpg, or both. We come back with the figures for your exact engine and a fixed price, usually the same day.

0115 496 0177