Noise Data
Stock
idle
Inside: 53
Outside: 59
3k rpm
Inside: 71
Sound Deadening
I wanted to reduce the noises which I was hearing while driving, especially on the freeway.
I started by pulling the interior
I pressure washed and bleached the carpet and floor
Then installed a product called “siless”, which is an 0.08” thick butyl rubber sheet with a layer of aluminum. My understanding is by adding some heavy material which is very mechanically lossy, the noise from panel vibration is reduced.
I installed this material on the floor, back wall, inside the doors, and on the roof.