Thread: LS Swap Exhaust
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Old 02-14-2024, 04:06 PM   #6
TotallyHucked
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Location: Gainesville, Ga
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Re: LS Swap Exhaust

I'll see if I can get some videos posted too. I've got an '85 with the 5.3 with Speed Engineering 1 3/4" headers. I bought an amazon X-pipe piece and a pair of Borla ProXS mufflers. Had an exhaust shop bend me up a custom 2.5" exhaust all the way out the back. Sounded really good, had a mellow idle but a very unique sound at WOT

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The ProXS's started droning worse and worse as time went on until I couldn't stand it anymore. So when I swapped in the T56, I swapped to some universal Corsa's mounted behind the axle. They're entirely too loud on the outside but they're very quiet inside. Gonna add some resonators to tone it down a touch and calm down the part throttle "clap" they have but overall this is much better than the first setup

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1985 GMC Sierra Classic
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Cammed LH6 5.3/T56/3.90
Walker Tuned
5/8 drop
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