RKR Step System Cab Length (2 Step Mounts/2 Steps per Side) 1.75 Inch Rails 2019 (New Body Style)-2025 Chevy Silverado/GMC Sierra 1500/2020-2025 2500 HD/3500 HD Crew Cab Textured Black NFab MBRP Exhaust Fabricated steel construction for durability

Fabricated steel construction for durability

F450 & F550 rear inner axle seal

Up To 9 Percent Flow Increase

Grade Type: Regular

RKR Step System Cab Length (2 Step Mounts/2 Steps per Side) 1.75 Inch Rails 2019 (New Body Style)-2025 Chevy Silverado/GMC Sierra 1500/2020-2025 2500 HD/3500 HD Crew Cab Textured Black NFab MBRP Exhaust Fabricated steel construction for durabilityN FAB RKR Rails Provide superior protection while enhancing the look of the vehicle. Constructed using 0. 12 inch. wall, 1. 75 inch. tubular steel, RKR Rails are treated inside and out for extra corrosion resistance so you know they are built to last. Finished with a durable textured black powder coat, N FAB RKR Rails look as good as they perform both on and off road. Making a great product even better, N FAB offers optional Detachable Steps that are