Stp Hood Solution 446817STP 1400 mm x 800 mm It blocks the vibration of the sheet metal at the point of contact with the speaker resulting in a very large improvement in sound performance across the frequency range.
It is also a good insulator for the engine compartment under the hood.
The package contains 1 Black sheet size 1400 x 800 mm Package size: 2.24 Thickness: 10 mm Easy installation Universal | Universal | Universal