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Old 07-17-2017, 12:44 PM   #15
HyperBlueX2


 
Drives: '22 Silverado 2500HD Duramax LTZ
Join Date: Dec 2015
Location: Millington, MI
Posts: 4,775
I am just wondering..... in the Borla video, all three of them appear to have the "suitcase" muffler when parked for start up and take off....

Any body else notice this or am I missing something? I don't recall a heatshield......

Towards the end of the video, when they show the valves open and closed, no suitcase muffler....
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