Use Sound-Deadening Mats

• Install high-quality sound-deadening mats under the carpet and inside the door panels. These mats are designed to absorb and block sound waves.
• Consider adding them to the trunk and roof for additional noise reduction.

Upgrade the Weather Stripping

• Check the weather stripping around the doors and windows for gaps or worn-out sections.
• Replace old weather stripping with high-density foam or silicone-based options to improve sealing and decrease noise penetration.

Install Noise-Reducing Window Film

• Apply noise-reducing window film to all windows. This film can help reduce wind noise and vibrations from the outside.
• It also provides added benefits like UV protection and increased privacy.

Upgrade Tires and Suspension

• Choose tires specifically designed for a quieter ride. Look for tires with low rolling resistance and specialized tread patterns for noise reduction.
• Consider upgrading the suspension system, as worn-out parts can contribute to increased road noise.

Use Acoustic Spray Foam

• Apply acoustic spray foam in the cavities and hollow spaces within the car's frame. This foam expands to fill gaps and effectively blocks sound transmission.
• Be cautious when using spray foam, as improper application can interfere with vehicle components.

Install Acoustic Panels

• Place custom-fit acoustic panels in the trunk, cargo area, and other interior surfaces. These panels are designed to absorb noise and reduce reverberation.
• Ensure panels are properly secured to prevent any movement or rattling.

Enhance the Vehicle’s Seals

• Double-check all seals around doors, windows, and the sunroof to ensure they are airtight.
• Consider adding secondary seals or gaskets if necessary to further enhance the soundproofing.

Check and Insulate the Firewall

• Inspect the firewall for any openings or thin spots that can let engine noise into the cabin.
• Add a layer of sound-deadening material, such as mass-loaded vinyl, to the firewall for better noise isolation.