Sound deadening. Damplifier and Luxury Liner Pro in my case. When I drove 100 miles to TireRack with my rear seat folded down, it made me realize how much louder my exhaust was with the seats down. I actually had a headache by the end of the trip. By comparison, with the rear bench up (which has a sheet of Luxury Liner sandwiched between it and the carpeting that lines it), the exhaust noise almost disappears.
Last edited by Stang70Fastback; 10-22-2018 at 01:26 PM.
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