Using Amazon Racing Division parts we have successfully riced out the GMT800. This sierra had a sad rusted out flowmaster installed and after running a muffler delete for a few days too long I had to upgrade in the silly fashion possible. LINKS FOR PARTS USED 3" Straight through muffler
a.co/d/07m4Bo4V Rainbow Muffler Surprise
a.co/d/061w66pr 3" Steel Exhaust Tubing
a.co/d/0cOgtTrO If you are interested in supporting the channel or you like the cool clothes I wear then check out the store. www.shopdnm.com/ Find us on Facebook, Instagram, and TikTok
@definitelynotmechanics
99-06 Silverado/Sierra Custom Side Exit Exhaust
