
Engine tuningmade to measure
Engine tuning designed around your car and how you use it, on road or track, by a workshop located 700 metres from the Paul Ricard circuit.
- Individual engine mapping
- Dedicated engine engineer
- 700 m from the Paul Ricard circuit
More power, more reliability, an engine tuned for your car.
Engine tuning tailored to your sports car
Every job starts from your car and how you use it, not from a ready-made setting.
- ▸ Individual mapping
- The engine and gearbox are tuned case by case by our engine engineer, never with a generic map.
- ▸ Road and track use
- The tuning adapts to how you drive, whether daily, sporty or track-day oriented.
- ▸ High-end sports cars
- Ferrari, BMW M, Mercedes AMG, Porsche or Nissan GT-R: we work on high-end sports cars.
- ▸ Close to the circuit
- Our workshop is 700 metres from the Paul Ricard circuit at Le Castelet, to validate the tuning in real conditions.

How we tune your engine
Engine tuning is about far more than gaining a few horsepower. At Bernis Factory, every operation starts from the actual condition of the engine, the car and the way you use it. Our engine engineer maps the engine and gearbox case by case, never reusing a generic setting that would ignore the car in front of him. Also find our expert engine preparation advice on our blog.
This bespoke logic shapes all of our work. We look for a balance between performance and reliability, so the car stays enjoyable and safe both day to day and on a track day. The idea is simple: to make our technical choices clear so you understand what is really happening under the bonnet.
- 01
- DiagnosisAnalysis of the engine, the electronics and your expectations before any work.
- 02
- MappingIndividual tuning of the engine and gearbox by our engine engineer.
- 03
- ValidationChecks and test drives, with the option to validate close to the Paul Ricard circuit.
Engine tuning and the Paul Ricard circuit
A large part of the tuning we carry out revolves around the track. Our workshop is located 700 metres from the Paul Ricard circuit at Le Castelet, which lets us support owners before, during and after a track session.
We are an official BMW M France partner for track support and recommended by ORECA. Our team has a recovery truck to step in directly on site, which naturally extends our engine tuning work.
How to choose your engine tuner for the track
Entrusting your sports car for track-focused tuning is not a decision to take lightly. Before choosing an engine tuner, a few criteria help tell a workshop that truly works case by case from a provider applying ready-made settings.
- ▸ Bespoke mapping
- A good tuner sets the engine and gearbox to suit your car and how you use it, never with a generic map reused from one car to the next.
- ▸ A dedicated engine engineer
- Tuning a high-end sports car calls for real technical skill. At Bernis Factory, every engine is followed by an engine engineer, from diagnosis to validation.
- ▸ Validation in real conditions
- An engine prepared for the track must be tested in conditions close to its use. Our workshop is 700 metres from the Paul Ricard circuit at Le Castelet, to validate each job as close to the track as possible.
- ▸ Command of road and track
- A sports car used on both road and track needs a balanced setup between performance and reliability. As an official BMW M France partner for track support, we cater to both uses.
Looking for an engine tuner for your sports car in Signes or around the Paul Ricard circuit? Tell us about your car and your project: we will work out the most suitable tuning for your use together.
Our engine tuning specialties
Engine tuning does not stop at the block. Depending on your project and your road or track use, Bernis Factory works on these complementary areas, all carried out in our Signes workshop, near the Paul Ricard circuit.
Engine remapping
Optimisation of the factory map on the bench to gain torque and power without compromising reliability.
Stage 1 and Stage 2
Two levels of tuning, from software gains on a stock vehicle to more advanced hardware upgrades.
Chassis preparation
Chassis stiffening and tuning to put the gained power down and keep the car balanced through corners.
Adjustable suspension and dampers
Refined road holding to suit your use: coilovers and settings adapted to both road and track.
High-performance braking
Discs, pads and lines matched to the power increase for endurant braking on track.
Services that complement your engine tuning
Your questions about engine tuning
What does engine tuning at Bernis Factory involve?
It is a bespoke operation to optimise your sports car's engine according to how you use it. Our engine engineer maps the engine and gearbox case by case, never applying a generic setting.
Which cars do you tune?
We work on the high-end sports cars we prepare every day, such as Ferrari, BMW M, Mercedes AMG, Porsche or Nissan GT-R, for both road and track use.
Do you give a price for engine tuning?
Every tuning job is bespoke and depends on the car and its intended use. For an estimate suited to your vehicle, the simplest step is to contact us directly.
Do you tune engines for the Paul Ricard circuit?
Yes. Our workshop is 700 metres from the circuit at Le Castelet. We support track tuning and track assistance, for which we are an official BMW M France partner.
Does engine tuning stay reliable day to day?
That is our priority. We seek a balance between performance and reliability, tuning each engine individually so it stays enjoyable and safe on both road and track.
How do you choose a good engine tuner to drive on track?
Favour a workshop that tunes the engine case by case with a dedicated engine engineer, rather than a generic map, and that can validate the work near a circuit. Located 700 metres from the Paul Ricard circuit and an official BMW M France partner, Bernis Factory prepares sports cars for both road and track.
A workshop dedicated to high-end engine tuning
Finding an engine tuning workshop that genuinely works case by case is rare. Many simply rely on generic maps, when every high-end sports car has its own requirements. Bernis Factory approaches engine tuning from its Signes workshop, with the eye of an engine engineer used to tuning engine and gearbox individually rather than applying ready-made settings.
Our business is organised around three complementary trades: maintaining sports cars, preparing them, and restoring youngtimers and classic cars. Engine tuning fits within this whole, linked to custom mapping, track preparation and the rest of our services, for consistent work from diagnosis to validation.
Located at 26 Allée de Dublin in Signes, in the Var, the workshop benefits from its immediate proximity to the Paul Ricard circuit at Le Castelet. This location shapes our approach to engine tuning and lets us support both local enthusiasts and visiting owners. As an official BMW M France partner and recommended by ORECA, we put these marks of trust at the service of your project.
Let's discuss your engine tuning project
A tuning project, a question about optimising your sports car or a track goal? Tell us about your car and we will work out the most suitable engine tuning together.
A project,
a call.
Tell us about your car and how you use it. We'll figure out the right service together, maintenance, engine tuning, chassis, restoration.
83870 Signes
Across from the Paul Ricard circuit
Monday, Friday · 9:30-18:00
By appointment only