Sierra 2500 HD

Take your Heavy Duty Truck to the next level with Rough Country's 6-inch Suspension Lift designed to run up to 35-inch tires. Gain increased ground clearance while maintaining factory ride quality with this all-inclusive kit designed to give the best of...

Crank it up with Rough Country's 2001-2010 Torsion Bar Leveling Kit. Featuring a set of durable, forged Torsion bar Keys, this kit affords you plenty of height without breaking the bank. Run up to a 285/75 R16 tire with this 1.5 - 2-inch Torsion Bar Kit...

Rough Country's 3in No-Cut Kit offers easy installation and aggressive good looks at an incredible value. Take your truck to new heights with this excellent option for 01-10 2500, 2500HD, 2500 Suburban and Yukon XL models. This kit features a set of...

When you want the look that blends sophistication with design and performance, be ORIGINAL with the OE Style Flare! The low profile, refined contours are precision engineered to match the vehicles styling. Choose the flare that enhances the factory...

Hit the ground running with Rough Country's Bolt-on 6-inch Suspension lift for 2WD GM 01-10 2500HD/3500HD models.This all inclusive kit features everything you need to run up to 35x12.50 tires on factory 17-inch wheels. Our beefy, one-piece, CNC machined...

Whether you're tackling tough terrain or smooth city streets, Rough Country's Nitrogen-charged V2 Monotube Shock Absorber leads the way, delivering impeccable ride quality and performance mile after mile. Rough Country's Monotube V2 Shocks feature an...

Crank it up with Rough Country's 2001-2010 Torsion Bar Leveling Kit. Featuring a set of durable, forged Torsion bar Keys andshock extension brackets, this kit affords you plenty of height without breaking the bank. Run up to a 285/75 R16 tire with this 1...

Rough Country's 3in No-Cut Kit offers easy installation and aggressive good looks at an incredible value. Take your truck to new heights with this excellent option for 01-10 2500, 2500HD, 2500 Suburban and Yukon XL models.This kit features a set of...

Less restriction. Flows great.  The stock intercooler is riddled with restrictions that cause turbulence, which kills airflow and power. Banks minimizes restrictions by making the flow area bigger throughout, from the 3" mandrel-bent boost tubes to the...

Move over, pipsqueak.  The stock intercooler has an inferiority complex. No wonder it's smaller than Techni-Cooler in every aspect: boost tubes, core area, inlet/outlet even the end tanks. And most competitors use poorly designed sheet metal end tanks...

Improve your on and off-road ride quality with Rough Country's premium N3 shocks! These 10-stage variable valving, high-pressure Nitrogen charged shocks offer a fantastic blend of off-road action and smooth highway ride quality. With a durable 18mm...

Mishimoto has released a performance aluminum radiator for the Chevrolet/GMC 6.6L Duramax. Mishimoto performance radiators are manufactured from high-quality aircraft-grade aluminum with a 100-percent aluminum core and polished end tanks. The Mishimoto 6...