Performance saloon under workshop lights before an ECU remapping session

Tuning file service

Tuning file service — with a local workshop in Peterborough

At TuningFiles AT we deliver a tuning file service first: performance and economy calibrations plus DPF, EGR and AdBlue file solutions, built per vehicle and archived. And if you're in Peterborough or within sensible driving distance, we also do the work on your car locally — local service prices agreed individually over WhatsApp.

Tuning files are the job. The workshop is where we prove them.

Remapping is a crowded trade, and most of it is invisible to the customer — you cannot see the file that goes into your ECU. TuningFiles AT is built around a tuning file service you can interrogate. Ask what the calibration changes, ask what was checked before it was written, ask for the measured output. You will get straight answers.

Performance tuning, economy tuning, custom dyno calibration and DPF, EGR and AdBlue solutions are quoted as separate routes because they are different jobs. A Stage 1 file for a healthy standard engine is not the same piece of work as a diagnostics-led file for a vehicle with faults.

On top of the file service, we offer local ECU remapping in and around Peterborough — you bring the car, we handle the whole job end to end. Local service is priced individually: message us on WhatsApp with the vehicle details and you'll get a straight number for your car.

Our most popular services

How tuning files work

Performance tuning files

Stronger power delivery, sharper throttle response and in-gear acceleration you can feel. Calibrated for the specific engine and its condition — never a one-size-fits-all file.

Economy tuning files

For drivers and fleets that want smoother torque and sensible fuel use. Focused on drivability and efficiency, and honest about what a calibration can and cannot save.

Custom dyno tuning

The vehicle is tested under controlled load so the calibration can be proven against measured output. The route for modified cars and anything beyond a standard stage file.

DPF, EGR & AdBlue solutions

Diesel-system faults cause limp mode, warning lights and expensive guesswork. Diagnostics come first — a file decision is only made once the hardware story is known.

Local service in Peterborough

All of the above done on your car at the workshop — Stage 1, Stage 2, DPF, EGR, flaps, AdBlue and more, for Peterborough and a sensible radius around it. Local service prices are set individually for each vehicle — quickest way is WhatsApp: send make, model, engine and what you want.

From German saloons to working trucks and field machinery

One disciplined file workflow covers all of it: read the original, build the calibration, prove it, archive everything. Ask for your exact engine — the quote comes from real calibration data.

  • BMW
  • Volkswagen
  • Audi
  • Mercedes-Benz
  • Ford
  • Scania
  • DAF
  • John Deere
  • Fendt

Straight answers to the usual questions

What is a tuning file and how is it different from a remap?

A tuning file is the modified calibration written into the engine ECU during a remap. Remapping is the process; the file is the product. TuningFiles AT prepares each tuning file for the specific vehicle rather than flashing a generic map.

Do you offer Stage 1 and Stage 2 tuning files?

Yes. Stage 1 works with a healthy standard engine, while Stage 2 supports hardware upgrades such as exhaust, intake or intercooler changes. The recommendation always follows a check of the vehicle, its service history and what you want from the tune.

What gains can I expect from a Stage 1 remap?

It depends on the engine, fuel and condition. As a reference, a common 2.0 diesel calibration moves from 190 hp to around 225 hp and from 400 Nm to 470 Nm. Ask for figures for your exact engine and the quote will come from real calibration data.

Do you tune trucks and agricultural machinery?

Yes. HGV tuning and agricultural tuning are core services here — torque delivery, fuel economy and DPF, EGR and AdBlue diagnostics for working vehicles that cannot afford downtime.

Can I go back to standard after a remap?

Yes. The original ECU file is read and archived before any tuning file is written, so the vehicle can be returned to stock at any time.

How do I get a quote?

Call, WhatsApp or email with the make, model, engine, gearbox, any current faults and what you want from the tune. You get a clear route and a fixed price before any work starts.

Get a quote from TuningFiles AT

Quote checklist

  • Vehicle make and model
  • Engine and gearbox
  • Current power level or stage request
  • Current faults or warning lights
  • What you want from the tune
Open in Google Maps