Leon, Spain · Local service and worldwide file service
Remapping, electronics and tuning files prepared methodically for construction equipment, tractors, trucks, cars, motorcycles, quads and ATVs.
Choose your machine
ECU tuning across Leon
At ARR Tuning we bring three disciplines into one workshop: software calibration, electronic diagnosis and physical ECU or TCU work. You get the right route for your machine — remapping, control-unit repair, cloning or a correct diagnosis before you spend money.
From Leon, Spain, we support cars, motorcycles, quads, ATVs, trucks, tractors and construction machinery. You can use our workshop, selected mobile service within 200 km or professional tuning file service from anywhere in the world.
We begin every job with concrete information: control unit, references, original read, tool, hardware, faults and objective. Your stock file is archived and every delivered revision is identified. The finished result may look discreet; the process behind it is not.
Expected gains
What we will do for you
If you run a workshop anywhere in the world, send us the original OBD, Bench or Boot read. We prepare Stage 1, Stage 2, torque and economy solutions, TCU files, DTC work and specialist requests with checksum control and support during writing.
Construction equipment needs performance under load, predictable response and fast fault diagnosis. We review the ECU, duty cycle and faults before recommending power, economy or electronics work.
We prepare calibrations around implements, transport, PTO demand and long working days. You get useful response, sensible fuel use and respected thermal protection.
An industrial vehicle is measured by availability and cost per kilometre. We shape torque delivery, response and engine strategy around the real load and route.
We remap standard and modified cars through a route defined by engine, ECU, hardware and use. Your Stage 1, Stage 2, TCU work, speed limiting and special functions are assessed separately.
Motorcycle, quad and ATV electronics require the exact exhaust, intake, fuel, use case and thermal limits. We confirm support by model and ECU before recommending a stage or feature.
We diagnose immobiliser, synchronisation, memory and ECU faults. You can request repair, adaptation, cloning or IMMO OFF according to the unit architecture.
We handle work in Leon and selected mobile jobs across Castile and Leon, Asturias and nearby provinces. Our ECU and TCU file service is available worldwide.
Performance & ECU solutions
Locations we cover
Leon and selected work within 200 km; worldwide tuning file service. Send us your postcode with the vehicle details and we will confirm the visit.
Why tune with us?
We sharpen the response and strengthen the pull so the machine reacts the moment you ask for more.
We tune for the road, water or trail where you use the machine — not for a number that only looks good on paper.
We use your original file, your modifications and your goal. You get our work for your machine, never an anonymous download.
What happens next
Send us the make, model, engine, modifications and what you want to feel after the tune.
We will explain whether Stage 1, Stage 2 or a custom tune is the best choice and agree the price with you.
Bring the vehicle to our Leon location or arrange a mobile visit across Leon and selected work within 200 km; worldwide tuning file service. We prepare the tune and keep your original file safe.
We hand it back ready for the moment that matters — the first press, twist or push of the throttle after the tune.
Prefer us to come to you? Mobile appointments are available by arrangement across Leon and selected work within 200 km; worldwide tuning file service.
Our promise to you
Tell us what you want and we will be honest about what your machine can deliver. If something needs fixing before tuning, we will tell you before you spend money.
We save your original ECU file before we make changes. You get the excitement of the tune without losing the option to return to standard later.
Talk to us
Leon, Castile and Leon
Espana
By appointment