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.
Why we do this
We built ARR TUNING for people who love engines
See the facilities, equipment and method behind ARR Tuning calibration, diagnosis and electronics work in Leon.
About
We tune the machines you love — and we want you to love them even more.
We built ARR Tuning around the electronics bench, calibration software and vehicles that do not fit into one category. Our Leon workshop combines a Dynomag rolling road, professional read tools, a microscope and open control units so your job can be measured, read, repaired and calibrated in the right order.
We do not sell one universal power promise. We ask which control unit the machine uses, how it works, what hardware is fitted and which result you want. You receive a route based on the actual machine before any file is written.
We apply the same method to worldwide file service. Send us an original read from your workshop and you receive a clear route, an identified revision and our support to complete writing and verification. Distance changes the channel, not the standard.
Our promise to you
We want you to feel the difference — and understand exactly what we did.
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
Tell us what you want to transform
Our location
Leon, Castile and Leon
Espana
By appointment
Tell us these five things
- What you drive or ride
- Which engine it has
- Which performance parts you have fitted
- Whether it has any warning lights or problems
- How you want it to feel after we tune it