Performance hatchback in a clean tuning workshop
JA Tuning logoPrecision & Passion Combined

A boutique VAG performance service led entirely by Jérémie Arpaïa for owners who value exact work, complete transparency, and zero corner-cutting.

Volkswagen, Audi, and Lamborghini work by one specialist, not a volume shop. Every recommendation, inspection, and performance path is handled with the same care the car itself deserves.

Precision and passion combined means careful diagnosis, deliberate upgrades, documented choices, and the personal accountability that comes from a one-man shop with a reputation to protect.

Craftsmanship

Boutique service means fewer cars, more attention.

Audi V8 FSI engine bay detail

Engine systems

Engine work starts with mechanical truth.

Health, heat, fuel, airflow, and service history come before a power target. The car has to be ready for the request.

Disassembled transmission components arranged neatly

Drivetrain precision

Drivetrain work is not guessed from the symptom.

Clutch, gearbox, TCU behavior, torque delivery, and drivability are treated as one system, especially once power goes up.

Installed performance exhaust system viewed from underneath the car

Hardware honesty

Supporting parts have to earn their place.

Downpipes, intakes, intercoolers, turbo hardware, and exhaust parts are chosen for the complete build, not for a parts list.

Start the conversation

Bring the facts. Jérémie will work with you to meet your vehicle's needs.

Send the model, engine, current modifications, fault codes, and the goal for the car. If the right path is maintenance first, that will be said plainly. If the car is ready for more, the booking, parts, or payment flow can connect to the existing Squarespace setup once that link is confirmed.

Jérémie's association with Unitronic should be read in the larger context of the work itself. If a Unitronic-based path is the right answer for the car, Jérémie can supply, install, and support the ECU, TCU, and related hardware path directly instead of sending the owner away to guess at parts alone.