Four common car modifications that could land you fine

Four common car modifications that could land you fine

Modifying your car is very common in the UK. Whether it’s getting shiny alloy wheels

Modifying your car is very common in the UK.

Whether it’s getting shiny alloy wheels or changing the suspension, it’s nice to splash money on your motor at times.

Now MoneySuperMarket has analysed car modification insurance enquires and revealed the ones likely to invalidate car insurances.

Alloy wheels were the most common car modification in 2021, accounting for every 1 in 7 enquiry (14%).

While suspension changes were the second most common car modification (9%), followed by exhaust system changes (8%).

So here are the four most popular modifications which could land you a lot of trouble as some could be illegal.



Four common car modifications that could land you fine
You could get your insurance invalidated

1. Window tints

Risk: £50-100 fine, 3 penalty points or court

Around 7% of all car modification enquiries to MoneySuperMarket were about window tinting.

But tinting your windows more than allowed can result in a £50 to £100 fine, three penalty points or even being reported to court.

The front windscreen needs to be 75% tint-free, and the side windows 70% tint-free.

2. Loud exhausts

Risk: Fine or court

Likewise, MoneySuperMarket recorded over 8% of car insurance enquiries for exhaust system changes.

But exhaust systems cannot go over the noise limit of 74 decibels.

Again, this can result in a fine or reported to court, as well as making the vehicle more damaging to the environment.



Fancy rims on a big rack in a specialist store.
Certain modifications would get you into trouble

3. Spoilers

Risk: Police intervention

Spoilers aren’t necessarily illegal.

They are popular, with 4% of MoneySuperMarket’s car modification enquiries about adding a spoiler.

But if not installed correctly, it can get you into trouble.

The spoiler needs to be fastened safely. If not, the police could have the power to remove the unsafe spoiler.

4. Nitrous oxide

Risk: £1,000-£2,500 fine

Using Nitrous Oxide to boost your motor speed in a gasoline engine is extremely illegal and dangerous.

Doing this can increase cylinder pressure, if they are exposed to enough heat, it could cause an explosion and costs for you.

Making changes to the engine in an attempt to improve performance could result in safety implications landing you a hefty fine.

The potential penalties are £1,000 for a car and £2,500 for a van, lorry or bus.

Just remember your car insurance policy can be invalidated by the modifications.

Jo Thornhill from MoneySuperMarket, said: “You need to let your provider know of any changes to the car, no matter how small.

“That’s because you don’t actually own the car while paying your finance instalments on PCP or HP.

“As long as you are within your contract, the car belongs to the finance company and is their security for the loan.”

MoneySuperMarket recommends sticking to your contract and returning the car in its original condition before the agreement.

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