Many people spend countless dollars on upgrades, modifications, and customizations of their vehicle in order to improve the look and performance, sometimes even enhancement of sound. Though people want to put a personal touch to their cars, it should be remembered and noted that some customizations are not legal.

Following 20 car customizations that are illegal in the country:

• The cold air intake is an advanced engine modification which is illegal in some states without appropriate certifications as it affects the emission from the exhaust of the car.
• Some drivers are enthusiastic about making their exhaust look and sound better including installing a straight pipe exhaust known as a muffler delete.
• Some people think it is a good idea to have full tinting on their windscreens despite obvious safety hazard.
• Tinted rear screen windows and side windows are favored by not only celebrities but also normal people but it possesses a safety hazard especially in bad weather when visibility is reduced.
• Some people install radar jammers which help them to know if they are being monitored by law enforcement people. This is completely illegal under federal law.
• Loud engines alone are not the only customizations that can break laws designed to control noise pollution, but extremely loud stereo systems are also illegal.
• Using special covers for licensed plates to deliberately cover the registered number from the authorities and speed cameras is punishable by law.
• Rolling coal is customization made by owners of a diesel car which causes more fuel to be taken into the engine so that huge rolling black clouds are produced by the exhaust. This is illegal.
• Some states in the country have banned plate frames for vehicles registered in the state. But others tolerate it as long as the state of origin or number is not obscure.
• Nitrous oxide system would seem to be part and parcel of any street racers car customization package. This is illegal in many parts of the country.
• Using brighter HID (High Intensity discharged) bulbs in the car headlamps is illegal and punishable by law.
• LED bulbs in the headlights are illegal.
• Cars with very low suspension may improve the appearance and achieve faster speeds but it is illegal car customization.
• High suspension particularly when it is customized is illegal in many in states.
• Exhaust pipes with emission are greatly frowned upon by the environmental protection agencies.
• Neon lights through popular car customization is a distraction and therefore not admissible by law.
• It is illegal to remove the muffler on the exhaust system creating obnoxiously loud throaty engine roars.
• Radar detectors are illegal in some states. It is not allowed to fix them on the windscreen causing obstruction while driving in other states.
• Light rig on the roof of a vehicle is illegal as it can distract and even dazzle other road users.
• Though studded tires are helpful in bad weather. It poses a risk when the weather is not bad causing it to skid and therefore is illegal.