Prohibited car items

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

Air horn
Air horn emit a loud and shrill sound when used. They may distract and cause nuisance to other users. The use of air horns, including modifying existing car horns to be air horns is not allowed in Singapore.

Chassis
The chassis is an integral part of a vehicle and it cannot be modified. If it is damaged beyond repair, the vehicle must be scrapped.

Crash Bars
Crash bars are designed to protect vehicles from head-on collisions with animals such as deers and they are mainly used in non-urbanised areas.

In urbanised cities like Singapore, crash bars are not allowed as can aggravate injuries to pedestrians and motorcyclists in case of accident.

Daytime Running Lamps (DRLs)
Aftermarket DRL kits may cause unwanted glare and distract other motorists on the roads.

Vehicles should only be installed with factory-fitted DRLs, as the vehicle manufacturer would have designed the lamps to meet international standards.

Engine Capacity
Increasing the engine capacity, such as enlarging the cylinder bore of the engine, may damage the engine. It may also adversely affect the safety and exhaust emissions of the vehicle.

High Intensity Discharge (HID) Auto-Lamp
Aftermarket High Intensity Discharge (HID) headlamp kits may cause unwanted glare. Vehicles should only be equipped with factory-fitted HID lamps as they are designed to meet international standards. From 2010, except for motorcycles, all newly-registered vehicles with factory-fitted HID lamps must have an auto-levelling feature to reduce glare. This feature automatically adjusts the headlamp angle and direction based on driving conditions.

Replacement bulbs for factory fitted HID lamps must also be recommended by the vehicle manufacturer. Higher wattage bulbs are not allowed as they increase the risk of fire.

Motorcycle Chain Guards
Chain guards help to reduce injury to motorcyclists when the chain or sprocket fails. They cannot be removed.

Motorcycle head lamp
To help increase motorists’ awareness of motorcycles on the road, motorcycles registered in Singapore on or after 1st November 1997 must be equipped with an automatic headlamp switch-on function. This automatic function cannot be disabled.

Nitrous injection devices
Nitrous injection devices introduce highly reactive nitrogen oxide gas into the combustion chamber. This results in faster combustion that may damage the engine. It may also adversely affect the safety and exhaust emissions of the vehicle.

Tow hooks
Tow hooks have sharp and hard surfaces that may aggravate injuries in the event of a collision.