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Vehicle Modifications

Before making any modifications to your vehicle, you will need to check if they meet LTA requirements.

At a glance

Understanding vehicle modifications

Modification refers to changing any system or part of your vehicle that differs from the manufacturer’s original specifications.


Before you buy a used vehicle, you may want to check if the vehicle has been modified.


Update your motor insurer of any modifications made to the vehicle.

Modifying your vehicle

There are 3 types of vehicle modifications:

  1. Modifications that do not need LTA’s approval
  2. Modifications that need LTA’s approval
  3. Modifications that are not allowed 


Before you modify any part of your vehicle, check the list of modifications to see what is allowed.


Related digital services

Report an illegal modification


Understanding vehicle modifications

A modification refers to replacing, adding or removing a vehicle’s components or systems, such that the vehicle is different from the original manufacturer's specifications. These modifications may be to enhance your vehicle’s performance, or they may be cosmetic in nature.

Before making any modifications to your vehicle, check if they comply with LTA’s guidelines.

The LTA’s guidelines for vehicle modifications ensure that road safety, vehicle exhaust gas and noise emissions standards are not compromised, for the benefit of vehicle owners, road users and our environment.

To avoid committing an offence, do not carry out unauthorised modifications to your vehicle. Otherwise, you may be fined up to $2,000 or face up to 6 months’ imprisonment.


Updating your insurer of modifications

When you modify your vehicle, it may affect your insurance coverage. If you have modified your vehicle, the General Insurance Association of Singapore advises you to notify your motor insurer. If you fail to do so, your claims may be declined in the event of an accident, and the motor insurance policy considered void.

You can check with your motor insurer before making any modifications.


Modifications when buying a used vehicle

Before buying a used or second-hand vehicle, you are advised to check that any modifications made to the vehicle are allowed. Assessment services are available at LTA-Authorised Inspection Centres (AIC).


Reporting illegal modifications

If you spot an illegal modification on a vehicle, you can report it via digital services.

Report an illegal modification


Modifying your vehicle

Before modifying your vehicle, check if you need to obtain LTA’s approval.

Vehicle modifications are classified into 3 types:

  • Modifications that do not need LTA’s approval
  • Modifications that need LTA’s approval
  • Modifications that are not allowed

All modifications must be installed by qualified personnel according to the vehicle and product manufacturer’s recommendations.

See the details for different types of modifications below.


Modifications that do not need LTA’s approval



Car seats

Fog lamps

Fuel additives

Fuel molecule polarisers

Gear knobs

In-vehicle entertainment systems

In-vehicle information and communication systems

Intake air filters

Intake manifolds

Meters and gauges


Rollover bars

Roof racks

Seat belts

Side skirts

Side windows and partitions (for light goods vehicles)

Spark plugs and spark plug cables


Sports rims (for cars only)

Steering wheels


Suspension systems

Tinted films

Tinted glass



Modifications that need LTA’s approval 



Exhaust system

Hoods or canopies

Seating arrangements


Superchargers or turbochargers



Modifications that are not allowed

These modifications compromise the safety of the vehicle’s occupants and other road users, or pose a nuisance to the public.  

Air horns


Crash bars

(Aftermarket) Daytime Running Lamps (DRLs)

Decorative Lamps

Increasing Engine capacity

(Aftermarket) High Intensity Discharge (HID) headlamp

Motorcycle chain guards

Motorcycle headlamp – disabling of automatic switch-on function

Nitrous injection devices

(Use of) Spot lamps

Tinting or masking of vehicle lamps

Tow hooks


For more information and assistance on vehicle modifications, please contact us.