Sierra 3500 HD

CARGOGLIDE MOUNTING BRACKETS FOR NEW DRAWER SYSTEMTransform the top of your Drawer System with the addition of a DECKED CargoGlide. Storage underneath, accessibility on the top. These brackets are the key: No drill, easy installation. Must purchase...

Large Three Layer Performance Air Filter:This 360-degree radial flow air filter features our oil-free Pro DRY S media with three layers of synthetic media for maximum convenience. Its progressive layering provides great filtration efficiency and dust...

Maximum Performance: Our cold air intake for the 2020 Silverado / Sierra Duramax L5P 6.6L was engineered to minimize air restriction and flow better than stock. This kit comes with a fully enclosed airbox that protects the filter from dirt and keeps out...

Our cold air intake for was engineered to minimize air restriction and flow better than stock. This kit comes with a fully enclosed airbox that protects the filter from dirt and keeps out engine heat.Our new snap-In lid design requires no screws to...

Large Five Layer Performance Air Filter:This 360-degree radial flow air filter features our pre-oiled Pro 5R media with five layers of progressively finer cotton gauze media for maximum performance. Our Pro 5R media provides your engine with the largest...

Clean up your Duramax engine bay by installing this simple, appealing billet plug. It eliminates the bulky, plastic turbo resonator boxClean up your Duramax engine bay by installing this simple, appealing billet plug. It eliminates the bulky, plastic...

Maximum Performance: Our cold air intake for the 2020 Silverado / Sierra Duramax L5P 6.6L was engineered to minimize air restriction and flow better than stock. This kit comes with a fully enclosed airbox that protects the filter from dirt and keeps out...

Clean up your Duramax engine bay by installing this simple, appealing billet plug. It eliminates the bulky, plastic turbo resonator boxClean up your Duramax engine bay by installing this simple, appealing billet plug. It eliminates the bulky, plastic...

Clean up your Duramax engine bay by installing this simple, appealing billet plug. It eliminates the bulky, plastic turbo resonator boxClean up your Duramax engine bay by installing this simple, appealing billet plug. It eliminates the bulky, plastic...

The PPE Intake Tube replaces the restrictive and plastic factory intake tube. The PPE Intake Tube eliminates the factory resonator which in turn reduces airflow restrictions and increases the airflow entering your turbo.All hardware and couplers are...

The PPE Intake Tube replaces the restrictive and plastic factory intake tube. The PPE Intake Tube eliminates the factory resonator which in turn reduces airflow restrictions and increases the airflow entering your turbo.All hardware and couplers are...

Keep your carpet in pristine condition with Rough Country's Floor Armor: Heavy Duty Floor Mats and Rear Cargo Liners. These eco-friendly, semi-flexible floor mats are made of an ultra-durable Polyethylene that offers a strong, rigid shape that's...