Before you book
How much does a Stage 1 remap cost in London?
What the listed tune price covers, what can change your quote and how to get a total for your car.
A* Remapping · London
Remapping guides
Compare tunes, check what your car needs and prepare for a mobile visit at home or work.
Before you book
Before you book
Car remapping, insurance and the MOT
What to ask your insurer, which emissions checks matter at the MOT and what to keep on file.
Before you book
Can you remap a car with over 100,000 miles?
The service history and symptoms to discuss before tuning an older or higher-mileage car.
North London
Planning a mobile remap in Barnet or Enfield
A worked example for choosing between a driveway and a workplace visit in North London.
Vehicle guides and tuning decisions
Audi
Audi A3 8V 2.0 TDI Stage 1 remap for 150 and 184 models
Why the 150 and 184 need separate checks and how to confirm which engine you have.
Ford
Is a Transit Custom 2.0 EcoBlue remap worth it?
A guide for work-van owners weighing up response under load and fuel use on regular routes.
BMW
Does my BMW M340i need an ECU unlock for Stage 1?
What the ECU and its software can tell us about fitting, lead time and the quote.
Volkswagen
Does a Mk7 Golf GTI need a DSG tune with Stage 1?
How to decide whether engine tuning alone or a separate gearbox tune suits your GTI.
Aftercare
Will a dealer software update remove my remap?
What to ask the dealer, what to check afterwards and when A* can reinstate a tune.
ECU remapping
ECU remap or tuning box for a diesel daily driver?
Compare how each option is fitted and removed, and what to ask before you choose.
Tuning and mobile fitting
ECU remapping
Stage 1 or Stage 2 remap?
What each stage changes, when hardware matters, and what to check before booking.
Read guideECU remapping
Do you need a dyno for a remap?
How a rolling road measures power, and what gets checked when a mobile tuner fits a matched file.
Read guide
Vehicle compatibility
When does a BMW need an ECU unlock?
Why the engine badge is only the starting point, and how OBD, bench and supplier unlocks differ.
Read guideGearbox tuning
What does a gearbox tune change?
Shift timing, kickdown and how gearbox software works with the engine.
Read guideFuel economy
Is an eco remap worth it for a diesel?
What Stage 1 Eco aims to change, and a simple way to measure fuel use on your own routes.
Read guide
London appointments
What happens at a mobile remap appointment?
What we need before we travel, where to park, and how a London home or workplace visit works.
Read guideA* Vehicle Systems
Immobiliser, tracker or dashcam?
Three different jobs, from adding a PIN to drive to tracking a vehicle or keeping footage of an incident.
Read the security guide