Guide
Remapping, insurance and warranty: what to check
Yes, you need to tell your insurer. Here's why, what to tell them, and what a remap means for your warranty, MOT and finance agreement.
Do I need to tell my insurer about a remap?
Yes. A remap changes how the car performs, so insurers treat it as a modification, and most policies ask you to declare modifications. Tell them before the remap or straight after it's done.
If you don't, an insurer can reduce or refuse a claim, or cancel the policy, because the car isn't the one they agreed to cover. That's a much bigger cost than any change to your premium.
Will my premium go up?
It depends on the insurer. Some charge more for a remap, some don't, and some won't cover modified cars at all. If your current insurer is expensive, it's worth getting quotes from insurers that specialise in modified cars.
What to tell them
- That the car has a Stage 1 ECU remap.
- The date it was done and who did it.
- The power figures, if they ask. We'll tell you what to expect for your car before you book.
Will a remap affect my warranty?
It can. If your car is still under a manufacturer warranty, a remap can give the manufacturer grounds to refuse claims on the engine or drivetrain. The same goes for many used-car and extended warranties, so read the terms or ask your dealer before you book.
Will a remap affect my MOT?
A Stage 1 remap isn't something the MOT tester checks directly, but the car still has to pass the normal emissions test.
Lease and finance cars
If the car is on a lease or finance agreement, it belongs to the finance company until it's paid off. Most agreements need their permission before any modification, so check yours first.
Ready to book?
Stage 1 starts from £249 for most standard cars, done at your home or work anywhere in South Wales. Send us your make, model, engine and year and we'll confirm your price before we travel. Want to know more first? Read what a Stage 1 remap is.
