Will my insurance know if I remap my car?
Mia Smith
Updated on June 24, 2026
Yes, you will definitely have to tell your insurer if you have a remapped car. Remapping is considered a modification and is, therefore, a change in what you had originally insured with the insurance provider.
Do insurers check for remap?
Motorists often ask, “can insurance tell if a car is remapped?” The answer is no, but they may find out. Insurers don't inspect cars before giving them cover, so, in reality, your insurer won't randomly check your car for remapping even though some policies may say the insurer can inspect a vehicle if they want to.
Do you have to tell your insurance if your car is remapped?
Yes, you need to tell your insurance provider if your car engine has been remapped. In car insurance terms, remapping or chipping is considered a car modification, even if it's one you can't actually see. If you don't inform your insurance provider, it could invalidate your policy.
Should you declare a remap?
You ought to declare a remap to your insurer, as it is a material change to your car's specification. By the way, if you are buying a car, you'll need to ask whether it has been remapped. Usually, you'll find remapped cars for sale to enthusiasts who will pay for the extra performance - the remap is a selling point.
Can you get away with not declaring a remap?
Not declaring modifications will be likely to result in you invalidating your policy. For the sakes of a few extra quid, I would recommend declaring everything.
24 related questions foundIs engine remapping legal?
Currently, there is no law against car remapping, but it is recommended to be undertaken by an experienced professional. The only thing you need to do after remapping is to inform your insurance company of the change.
Is a Stage 1 remap safe?
Stage 1 is the level of remapping that Remap Kings use as it is the only safe level for your car, allowing us to guarantee our work on your vehicle.
Can remapping damage your Turbo?
Some people are concerned that engine remapping could cause problems with their car. But it shouldn't affect reliability if you use a reputable company. Remapping does put extra strain on an engine, but not a dangerous amount if it's done properly.
How much BHP will I gain from a remap?
You can expect a 20-30% increase in bhp and torque after a remap. This extra performance is accessible across the rev range, particularly at low revs and in the mid-range. A typical 30-70mph run will be reduced by 1.5-2 seconds, and your car will pull better at higher speeds.
Does remapping a car save fuel?
For example, it's a common belief that remapping a vehicle has no effect on fuel economy, however, this technically isn't true. As the result of ECU remapping, a car usually sees an increase in power, which can come at the expense of higher fuel consumption.
What are the disadvantages of remapping a car?
What are the disadvantages of remapping a car?
- Unknown results. ...
- It's not cheap. ...
- Can void the warranty. ...
- No turbo, no point. ...
- More strain on the car. ...
- Car insurance premiums. ...
- Increased fuel consumption. ...
- Can you remap a lease vehicle?
Does remapping your car make it louder?
Will remapping my car make it louder? No remapping a car does not make it louder. The car's engine may act differently producing more RPM (Revs per minute) at different and producing more power but does not make it louder.
Does 40 bhp make a difference?
However, a 40bhp increase is a 40% power bump on a car with 100bhp stock which you will most definitely notice, the car will feel like a rocket after, but this is only with a proper remap, not a 'tuning box', which as I said will do very little.
Is remapping worth the money?
Remapping can increase both performance and economy in most types of vehicles. Even a car with a 1 litre engine can receive good power gains from a remap, especially if it has a turbocharger. Most modern cars these days have a turbocharger (or supercharger) fitted to the engine.
How do I know my car has been remapped?
Although some remapping services leave a sticker on the ECU, this is the only visual clue that changes have been made. You could refer to your car's user manual and compare the acceleration and performance of your car currently with the figures in the booklet.
Does remapping affect mot?
But, the reality is that your vehicle will still pass its MOT test after a remap and it will continue to do so for many, many years. How do we know this? Remapping a car is basically fine-tuning it.
Does remapping shorten engine life?
Treat the car nicely, keep it serviced and a remap will have very little effect on the life of an engine or car.
What is a Stage 3 remap?
The stage three remap takes into account larger upgrades and can improve already powerful, larger turbo engines and injectors. The stage three software is intelligently developed to build upon proven quality engine modifications. As the user you can opt for your preferred turbo charger, exhaust and air intake upgrade.
What will a Stage 1 remap do?
A Stage 1 Remap increases power and torque while also improving fuel efficiency. Removes flat spots and gives a more responsive drive without compromising reliability.
How much bhp does a Stage 1 add?
A stage 1 tune is simply an ECU remap or chip tune. This is the most cost-effective way to modify any vehicle for performance. Turbo-diesel and turbo-petrol vehicles respond extremely well to stage 1 tuning and commonly see a 20 – 40% increase in bhp and torque.
Does a tune change exhaust sound?
Does A Tune Change Exhaust Sound? Similarly, tuning or tuning your engine is not going to change how loud your exhaust is. Exhaust systems always have a very high level of loudness.
Does a car sound different after a tune?
Tunes definitely increase the sound intensity of the engine. When I first went from stock to tuned, I noticed that immediately. While it is a more intense sound, I also think it sounds more refined. I find the difference most apparent at higher RPM - the tuned car just revs more easily.
Will tune make exhaust louder?
So with a tune, you making more power, moving more air the exhaust gets louder.
What is illegal engine remapping?
Illegally remapped engines are a product of deliberate or reckless tampering of a heavy vehicle's emission control system or speed limiter.
Does remapping increase top speed?
From our experience, on cars that are up to 2.0-litres (turbocharged or not), you can expect a stock 0 – 62mph time to be beaten in a remapped car by 0.2 seconds. That doesn't sound like a lot, but in the real-world it actually is – it's around 2 car lengths up to 70mph.