Tesla Model 3 and Model Y Custom-Cut Dynamat® Xtreme® Sound Deadening Kits

Why Road Noise Stands Out in a Tesla

In a gas car, engine noise masks most of what the road sends up through the floor and doors. An EV has no such cover. 

Common road noise sources include:

• Tire noise: Contact between the tires and pavement creates sound that varies with the road surface, tread design, and speed.
• Wind noise: Airflow around the mirrors, pillars, and windows becomes more audible at highway speeds.
• Panel resonance: Metal panels in the doors, floor, and trunk vibrate in sympathy with the road and radiate that energy into the cabin.

Dynamat Xtreme is a butyl constrained layer damping mat with an aluminum face. Applied directly to clean sheet metal, it converts vibration energy into a small amount of heat, so the panel stops acting like a speaker for the road.

Tesla Model 3 Sound Deadening

Three kits cover the doors, trunk, and trunk lid on the 2017-present Tesla Model 3. Choose the areas you want to treat, and confirm fitment on the product page before ordering.

• Model 3 door kit: Custom-cut pieces for the inside and outside of all four doors, the single change most owners hear first. Damping the door skins also gives the factory speakers a solid panel to work against. 
• Model 3 trunk kit: Covers the trunk well and the panels around it, where the hollow resonance behind the rear seats lives.
• Model 3 trunk lid kit: Damps the one large unsupported panel that rings over expansion joints and rough asphalt.

Tesla Model Y Sound Deadening

The Model Y’s cargo area connects directly to the passenger cabin, so resonance from the panels behind the rear seats are more noticeable to occupants. These kits cover the doors, trunk, and liftgate on 2020-2024 models.

• Model Y trunk kit: Covers the most resonant panels in the cargo area, which, on a hatchback, is the space closest to the cabin.
• Model Y door kit: Treats the door skins, the thinnest panels on the car and the closest to the tires. Speaker clarity improves along with the quiet. 
• Model Y trunk lid kit: Damps the liftgate, a wide panel with little behind it to stop it ringing.

What to Treat First

Start with the area you most want to improve. If clearer music is high on your list, the doors are a good starting point on either model. Damping the door skins reduces panel resonance and the buzzing that can compete with your speakers, so you get benefits beyond a quieter drive.

Next, turn to the trunk. Tesla Model 3 trunk sound deadening quiets the metal panels behind the rear seats, which enclose a large air space that amplifies noise from the rear wheels. On a Model Y, that space opens directly into the cabin, so start there if rear noise is your main complaint.

The trunk lid, or the Model Y’s liftgate, is the smallest project of the three. With one panel and one kit, it’s a manageable next step before taking on the rest of the car. 

Cut to Fit, Ready to Install

A custom-cut sound deadening kit takes measuring and trimming out of the job. Instead of cutting from bulk sheets, you get pieces already shaped for your Tesla’s panels, so there’s no guesswork around brackets, wiring, and recesses.

Once the trim is off, installation is peel and stick. Clean and dry the exposed metal, position each piece, then press it firmly into place with a Dynaroller. Work along the contours and ribs so the butyl bonds to the metal everywhere, not just on the flats. No separate adhesive, no heat. 

Before ordering, confirm your Tesla’s model and year. Custom-cut kits are final sale.