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Old 10-23-2016, 07:48 PM   #1
Drives: Black 2014 2SS
Join Date: Apr 2015
Location: Oologah, OK
Posts: 266
rear quarter panel sound deadener

One of the first mods to the car was sound deadener to the trunk of the car.
This weekend I upgraded the front 6.5 seperates and added deadener to the doors. ( the doors seemed to have a lot of thought put into sound deadening and sealing)

It nows seems that there is a lot of road noise that comes from the rear quarter panels. I have been looking at the threads on replacing the rear 6x9's. It seems that behind the plastic trim is an open void to the outside panel... It "seems" that sound deadener in inside this cavity would go a long ways into quieting the cabin.

I did a simple iphone db test before the truck deadening... according to the free app at highway speed deadening the trunk made a 3db decrease in road noise.

Are the rear quarter panels as "bad" as the pictures make them look. I mean it appears as if a liberal dose of butyl based deadener, and maybe even some dampening material on top of that.

Every db I can reduce outside noise just makes the audio sound that much better.
2014 L99 2SS. 569HP/550ft-lbs Mods: LSA Conversion 2.5" Upper Pulley, 65# injectors, GPI SS1 Cam, SP Long Tubes, HF Cat, ADM Race Scoop & CAI, NPP exhaust (DIY control), BMR 1" lowering springs, CF Side Strip / Hood Spear, Tint - Windows / Tails / Sidemarkers, Splash Guards, ADM Boost Gauge, ABL Dashkit, '68 Script Badges, ACS T4 Splitter, ZL1 Rockers from Gary's, Z28 Spoiler, Carbon Fiber Hood Vent, Drag DR 64's Satin Black (9" Front-10" Rear.)
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