The Guide to Legal Car Modifications in Louisiana | YourMechanic Advice

The Guide to Legal Car Modifications in Louisiana

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If you live in Louisiana or are planning to move to the state, you need to know which vehicle modifications are legal for your vehicles if you want to drive them on the roadways. The following information will help you modify your car or truck while still following the modification laws in Louisiana.

Sounds and noise

Louisiana has regulations concerning the sound systems and mufflers on your vehicle.

Sound system

  • Sound amplifiers or amplification systems cannot be installed anywhere on the exterior of the vehicle, or in such a way as to ensure the sound can be heard outside of the vehicle. Failure to follow this regulation can result in a minimum $25 fine.

Mufflers

  • Mufflers are required on all vehicles.

  • Muffler cutouts, bypasses or other similar devices are permitted.

  • Muffler modifications that make the engine sound louder than the equipment installed by the manufacturer are not permitted.

Tip: Also check with local county laws in Louisiana to make sure you are following any municipal noise ordinances that may be more stringent than state-level laws.

Frame and suspension

Louisiana does not limit frame or bumper height and there are no limitations on suspension systems. However, vehicles cannot be over 13 feet 6 inches in height.

Engine

Louisiana does not have engine swap or modification regulations. However, Ascension, Livingston, Iberville and East and West Baton Rouge require emission testing.

Lighting and windows

Lights

  • No red or green lights can be visible from the front center of a passenger vehicle.

  • No red, blue or red, white and blue lights are permitted on passenger vehicles.

  • Lights more than 300 candlepower must be positioned so that they do not hit the road more than 75 feet from the vehicle.

  • Two fog lights are permitted.

  • Spotlights are prohibited.

Window tinting

  • Non-reflective tint can be applied to the top of the windshield above the AS-1 line from the manufacturer.

  • Front side windows must allow over 40% of light through.

  • Back side windows must allow over 25% of light through.

  • Rear window must allow over 12% of light through.

  • Front side and back side window tint can’t be over 20% reflective.

  • Legal tinting identification sticker must be affixed to the driver’s side window between the glass and the film.

Antique/classic car modifications

Louisiana offers an antique plate for vehicles that are 25 or more years old and that have been restored to original, non-modified conditions.

If you want to make vehicle modifications but you want to ensure they follow Louisiana law, YourMechanic can provide the mobile mechanics to help you install the new parts. You can also ask our mechanics what modifications may be best suited to your car using our free online Q&A system, Ask a Mechanic.


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Chris

21 years of experience
1861 reviews
Chris
21 years of experience
Mini Cooper Clubman - Brake Pads Replacement (Rear) - Silverado, California
He arrived early, went straight to work, and it should have been quoted higher as it’s a Mini which takes longer than the average break job. He didn’t try to get more than the quoted amount. He even set out to replace a running light for me when he was finished. I thought there would hard sales telling me I needed more work but there wasn’t. Because he didn’t try to sell me more work, I will use him again. When I hired a mechanic I don’t want a salesman. 
Land Rover Range Rover Sport - Brake Pads Replacement (Front) - Irvine, California
Chris again has provided great Service. Everything was great. I was very happy with the work and will definitely have him return for any other work.

Bryant

11 years of experience
408 reviews
Bryant
11 years of experience
Ford Fusion - Brake Pads Replacement (Front, Rear) - Indianapolis, Indiana
Bryant has done great work on my car before, the latest work is no exception. He's very flexible, and goes the extra mile to get you back on the road.
Scion iA - Brake Pads Replacement (Front) - Carmel, Indiana
This is my first time using this service. I am very happy with it. Bryant was very knowledgeable and did quality work. I will use this service more regularly.

Edmar

21 years of experience
184 reviews
Edmar
21 years of experience
Chrysler 200 - Brake Pads Replacement (Rear) - Euless, Texas
Edmar always does a very good job. He's done a few different things on my car the last two years. Each job was performed very fast and top quality. Thank you once again.

Mazyar

7 years of experience
255 reviews
Mazyar
7 years of experience
Jaguar XF - Brake Pads Replacement (Rear) - Lawrenceville, Georgia
He was early, courtesy and actually helped me save some money since i didn't need all the work that i thought i needed done. Honest guy. Very knowledgeable. Great attitude.

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