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Discussion Starter · #1 ·
I just got a new truck and it’s to quite for me I want to install 5 In exhaust will it be able to work with the stock down pipe on a 07 GMC Sierra 2500 6.6L
 

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The manufacturer of the exhaust system should know..
 

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OP... You can reach out to our supporting vendors to get your questions answered.
 

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2007 GMC Sierra LBZ
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Yes it will work with stock down pipe. I would advise to change the down pipe to custom unit tho as you will get a nicer sound along with the better flow. I would recommend a 5” exhaust any day. So much better sound.
 
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