Re: 89 crew cab k20 4wd twin turbo cummins swap
Some pics of the offbrand Dynamat. Installed 70 lbs worth in just the firewall and floor. I did 2 layers on the firewall to make sure no noise makes it through!
You'll need it them Cummins are noisy!!!!! But I love the power.
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Lil red 86 c-10
99 Sub
78 Camper Special w/ 454
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