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LS short box · 07-25-2020, 05:52 PM

Just bought a 2020 Silverado 1500 with the 6.2.

Question? When you deleted the muffler did you delete the two butterfly valves that are in front and behind the muffler?

07-25-2020, 05:52 PM	#9
LS short box Registered User Join Date: Jun 2015 Location: Carlos MN Posts: 1,926	Re: My New 2019 GMC AT4 Just bought a 2020 Silverado 1500 with the 6.2. Question? When you deleted the muffler did you delete the two butterfly valves that are in front and behind the muffler?