2021 GMC SIERRA 3500 HD Magnaflow

Fitment:

2021 GMC SIERRA 3500 HD AT4, BASE, DENALI, SLE, SLT / 6.6L V8 Diesel / Crew Cab w/78.8 in./6 ft. 6.8 in. Bed, Crew Cab w/82.2 in./6 ft. 10.2 in. Bed, Crew Cab w/97.6 in./8 ft. 1.6 in. Bed, Crew Cab w/98.2 in.(249.4 mm)/8 ft. 2.2 in. Bed, Extended Cab w/78.8 in./6 ft. 6.8 in. Bed, Extended Cab w/82.2 in./6 ft. 10.2 in. Bed, Extended Cab w/97.6 in./8 ft. 1.6 in. Bed, Extended Cab w/98.2 in.(249.4 mm)/8 ft. 2.2 in. Bed

Fitment:

2021 GMC SIERRA 3500 HD AT4, BASE, DENALI, SLE, SLT / 6.6L V8 GAS / Crew Cab w/82.2 in./6 ft. 10.2 in. Bed, Crew Cab w/98.2 in.(249.4 mm)/8 ft. 2.2 in. Bed, Crew Cab w/98.2 in.(249.5 mm)/8 ft. 2.2 in. Bed, Extended Cab w/82.2 in./6 ft. 10.2 in. Bed, Extended Cab w/98.2 in.(249.4 mm)/8 ft. 2.2 in. Bed, Extended Cab w/98.2 in.(249.5 mm)/8 ft. 2.2 in. Bed

Fitment:

2021 GMC SIERRA 3500 HD AT4, BASE, DENALI, SLE, SLT / 6.6L V8 Diesel / Crew Cab w/78.8 in./6 ft. 6.8 in. Bed, Crew Cab w/82.2 in./6 ft. 10.2 in. Bed, Crew Cab w/97.6 in./8 ft. 1.6 in. Bed, Crew Cab w/98.2 in.(249.4 mm)/8 ft. 2.2 in. Bed, Crew Cab w/98.2 in.(249.5 mm)/8 ft. 2.2 in. Bed, Extended Cab w/78.8 in./6 ft. 6.8 in. Bed, Extended Cab w/82.2 in./6 ft. 10.2 in. Bed, Extended Cab w/97.6 in./8 ft. 1.6 in. Bed, Extended Cab w/98.2 in.(249.4 mm)/8 ft. 2.2 in. Bed, Extended Cab w/98.2 in.(249.5 mm)/8 ft. 2.2 in. Bed