Why should you remap your automatic gearbox?
There are three main reasons why customers come to us in Nantes to have their automatic gearbox remapped:
1. To accompany a Stage 1, 2 or 3 engine remap
This is by far the most common reason. When you remap your engine (for example, a Golf R from 320 ch to 380 ch), your gearbox’s torque capacity increases by 20 to 40 per cent. The original mapping is not optimised for this new torque level, which can lead to wheel spin, premature clutch wear, or even the gearbox entering a limited-performance mode. Reprogramming the gearbox at the same time allows it to handle this increase in torque without any issues.
2. To make the gearbox more responsive during sporty driving
On models such as the Mégane RS, the Audi RS3, the Cupra Formentor or the BMW M2, the factory automatic gearbox is deliberately restricted by the manufacturer to maintain comfort. Remapping unlocks the transmission’s true responsiveness: gear changes in a matter of milliseconds, instant kickdown, and paddle-shift downshifts with no lag.
3. To correct unsatisfactory factory behaviour
Certain gearboxes (notably the Stellantis EAT8, Ford PowerShift or dry 7-speed DSG units in urban driving) exhibit sluggish gear changes, hesitation or a lack of smoothness as standard. Reprogramming helps to iron out these flaws without compromising reliability.
What reprogramming does NOT do: it does not fix a mechanically faulty gearbox. If your automatic gearbox has proven slippage, leaks or abnormal noises, start with a diagnostic check and a MotulEvo oil change before considering reprogramming.

What is included in the automatic gearbox remapping service at Shiftech Nantes
Torque limiters
Gear-change mapping
Clutch pressure
Clutch cooling
Overhead track system
Removal of the kickdown
Engine remapping only vs engine remapping + automatic gearbox: what’s different
|
Criterion |
Engine remapping only |
Engine remapping + automatic gearbox at Shiftech |
|
Permissible torque |
Unchanged (risk of wheel spin) |
Increased depending on the map |
|
Gear changes |
Delayed or abrupt |
Optimised, faster and smoother |
|
Gearbox safety mechanisms |
Incompatible with the new torque |
Recalibrated |
|
Gearbox durability |
Reduced |
Maintained |
|
Driving experience |
Inconsistent |
Consistent |
This is the most popular configuration at Shiftech Nantes, and by far the most effective: simultaneously remapping the engine and the automatic gearbox. Here’s why this combination is so effective:
- The remapped engine delivers higher torque than the original gearbox can utilise to its full potential
- The reprogrammed gearbox shifts more quickly and handles the additional torque better
- The two mapping profiles are synchronised to ensure seamless performance

FAQ
Frequently Asked Questions
Yes. Automatic gearbox remapping is not limited to tuned vehicles. On a standard vehicle, it enables faster gear changes, better-timed shifts within the rev range, and more responsive gear changes. This is a separate modification in its own right, distinct from engine tuning.
The vast majority of dual-clutch gearboxes (DSG, S tronic, PDK, DKG, EDC) and torque converter gearboxes (EAT, ZF 8HP, Tiptronic) are compatible. CVTs are dealt with on a case-by-case basis. Please contact the centre with your vehicle’s details (make, model, version) to confirm compatibility.
When carried out correctly, automatic gearbox remapping does not compromise the transmission. By calibrating the safety mechanisms and clutch pressure in line with the engine’s actual torque, it actually reduces the risk of slippage and overheating, which damageunmodified gearboxes.
Yes, this is in fact the recommended procedure. Both remappings are carried out during the same appointment, with validation on a dynamometer. The consistency between the engine mapping and the gearbox mapping is checked before the vehicle is returned.
Your Shiftech centre in Nantes (Sautron)
Opened in 2022, Shiftech Nantes is the eighth centre in the Shiftech network. Managed by Julien, supported by an experienced team, it draws on over 10 years’ experience in car preparation.
Address: 2 Rue du Carr Norgands, 44880 Sautron
Telephone: 02 55 99 78 78
Opening hours: Tuesday to Saturday · 9.00 am–12.30 pm and 2.00 pm–6.00 pm · Closed on Sundays and Mondays
We welcome motorists from Nantes, Sautron, Saint-Herblain, Couëron, Orvault, La Chapelle-sur-Erdre, Carquefou, Saint-Sébastien-sur-Loire, Rezé, Vertou, Bouguenais, Saint-Nazaire, La Baule, Pornic, Ancenis, Châteaubriant, Clisson, and more broadly from across the Pays de la Loire region (Loire-Atlantique, Maine-et-Loire, Vendée, Mayenne, Sarthe), as well as neighbouring departments (Morbihan, Ille-et-Vilaine, Vienne, Deux-Sèvres).
Our additional services in Nantes
To get the most out of your automatic gearbox remapping, certain additional services form a coherent performance package. Here are the services most commonly combined with automatic gearbox remapping at Shiftech Nantes:
→ Stage 1, 2 and 3 engine remapping: The most popular combination among our enthusiast customers. Remapping the engine at the same time as the gearbox to synchronise power, torque and gear changes. Our gearbox mapping is calibrated to handle the extra torque generated by the engine tuning, ranging from moderate upgrades (Golf R Stage 1) to extreme set-ups (Mercedes-AMG GT Black Series Stage 2, recently tuned to 880 ch by us). → Stage 1, 2 and 3 engine remapping in Nantes
→ MotulEvo automatic gearbox oil change: A preventative measure strongly recommended prior to any automatic gearbox remapping, particularly if your vehicle has exceeded 60,000 km. On Alpina or BMW M ZF 8HP gearboxes, and on DSG 7 and S tronic dual-clutch gearboxes, the quality of the hydraulic fluid directly determines the gearbox’s ability to handle the remapped control map. Our MotulEvo process guarantees 100 per cent fresh oil and 0 per cent residue on all transmissions. → MotulEvo oil change for your gearbox in Sautron
→ Performance parts and tuning: To complete your vehicle’s tuning, we fit parts from the leading performance brands in our workshop: Akrapovic, Milltek and Novitec exhaust systems; Eventuri intake systems; BMC filters; Thor and CETE Active Sound Systems. Engine and gearbox remapping, combined with a suitable exhaust system, unleashes your vehicle’s full sporting potential. → Shiftech Nantes


