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Discussion Starter #1
Hi All, Looking to get a GMPP?borla muffler for my 14 Silverado 5.3
I thought I seen one with GMPP stamped on the muffler body.
Anyone have a part number for it?
Thanks
 

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SOONER NATION
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90 Posts
I had one on my 06 sierra 5.3, honestly sucked, almost no noticeable difference in sound and i had the sport version.
 

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Premium Member
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6,277 Posts
had a gmpp, wasn't that loud...sold it
 

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Discussion Starter #4
Thanks for the replies. Guess that I will look into something else. Would like to
pick up some performance and decent sound. The stock exhaust on this truck is
super quiet,like a Caddy. lol
 

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SOONER NATION
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CORSA


Sent from my iPhone using Tapatalk
 

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Rest in Pieces
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Pick up a borla xr-1 or aero turbine if you're staying stock. If you're going long tubes then a 14" or bigger mangaflow would be good.
 

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Knuckle Buster
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love the XR-1s on my 8.1...about to put those on my 6.0 true dual with an x-pipe. 8.1 still has the stock cats and you can hear me coming a couple blocks away
 

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running a single 3.5" borla xr1 in the trucak and love it
 

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looks like the one im running. i love it we will be putting one on my brothers tundra soon too they sound good.
 
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