K KAL New member Apr 30, 2012 #1 I will be changing out my muffler soon on a 05 GMC Sierra. I need to know what size pipe comes stock in this truck. Thanks
I will be changing out my muffler soon on a 05 GMC Sierra. I need to know what size pipe comes stock in this truck. Thanks
C Crazy Blu Banned Apr 30, 2012 #2 2.88(2 7/8)stock but any shop will put and be able to fill weld a 3" muffler
