Sierra 2500HD/3500HD 2020-2026 GMC (w/2" lift or leveling kit) - Cognito 2.0 IFP Shocks (set of 4)

The Cognito 2.0 IFP Shock Kit (110-91327) is engineered specifically for 2020–up GMC Sierra 2500HD/3500HD trucks equipped with a leveling kit and aftermarket upper control arms. This complete front and rear shock package is tuned to improve ride quality, suspension travel, and overall vehicle control while maintaining durability for daily driving and occasional off-road use.

The front shocks are designed with a precise length that maximizes suspension droop travel without causing binding of tie rods, lower ball joints, or CV axles. By optimizing the shock length—the primary droop limiter in the front suspension—this kit increases front suspension travel by approximately 35% more droop travel compared to factory shocks.

Each shock features an Internal Floating Piston (IFP) design that separates the high-pressure nitrogen charge from the oil, preventing aeration and ensuring consistent damping performance under varying driving conditions. Premium shock oil and vehicle-specific valving provide improved ride comfort, stability, and control for GM HD trucks.

The shocks are constructed from hard-anodized aluminum for excellent heat dissipation, reduced weight, and corrosion resistance. The front shocks also utilize a vulcanized upper bar pin mount and bushing to deliver OEM-quality mounting performance and durability.

Features & Benefits

• Cognito 2.0 aluminum IFP front and rear shock set
• Designed specifically for leveling applications with aftermarket upper control arms
• Approximately 35% increase in front suspension droop travel
• Vehicle-specific valving optimized for GM HD trucks
• Internal Floating Piston (IFP) separates nitrogen charge from shock oil
• Hard-anodized aluminum bodies for heat dissipation and corrosion resistance
• Vulcanized upper bar pin mount on front shocks for OEM-style installation
• Improved ride comfort and suspension control on and off road
• Rear shock length optimized for stock height up to 1" rear lift