Sound deadening
01-05-2003, 07:11 PM
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Sound deadening
Does it really make too much of a diff. between aluminum backing and non aluminum backing? I'm not looking to compete but what to kill some of the road noise.
01-05-2003, 08:52 PM
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Car: 86 LG4 & 92 TBI Firebird
Engine: The Mighty 305!
Transmission: 700R4
Axle/Gears: 3.42
Makes no difference. Its the thinkness of the material that does.
01-05-2003, 08:53 PM
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Are you talking about sound-deading material with aluminum film on it, as in the diff. between Dynamat and Extreme Dynamat? if so, I have heard the difference is noticable, but I would probably get the regular stuff and use the extra money to buy a little extra. The rear wheelwells, under the plastic molding in the trunk is a HUGE problem area. Plus, if you had some extra Dynamat, you could take care of the sail panels and doors. Also, you'd be suprised at what a difference new weatherstripping around the doors/hatch can make. Even a small gap lets in an enormous amount of road noise.
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