About this vehicle 2020 GMC Sierra 2500 HD Denali Duramax. 6.6L Diesel engine. 10 Speed Allison Transmission. Fully Tuned and Deleted with EFI Live on the go settings. Full 5” exhaust with Down pipe. 6-9 inch FTS lift kit installed By Down East Off Road. Amp Powered running boards. Full 5% ceramic t... Read More
