4" inch Performance Lift Kit with Fox PSRR 2.0 Shocks

Features:

• 4-inch front lift for aggressive stance
• 1-inch rear lift with block and U-bolt kit
• Fox 2.0 remote reservoir shocks included
• Improves ride quality and shock cooling
• Corrected CV and ball joint angles
• SM Series boxed upper control arms
• Patented Pitman and Idler Arm Support Kit
• Reduces steering wear and center-link play
• Allows up to 35x12.5 tires with clearance
• 13-hour estimated install time
• All components engineered and made in USA
• Compatible with 2011–2019 GM 2500HD/3500HD

This Lift Kit Transforms Your Truck From Stock To Standout

If you’re looking to give your Silverado or Sierra 2500HD or 3500HD the stance, performance, and confidence it deserves, this 4-inch Cognito Performance Lift Kit with Fox PSRR 2.0 Shocks delivers the total package. This kit doesn’t just lift your truck, it completely upgrades the way it handles on and off the road. With precision-engineered components and everything included in one box, there’s no second guessing or piecing things together. The Cognito SM Series upper control arms correct ball joint angles while also allowing more droop travel, which gives you a smoother ride and better suspension movement over uneven ground. Meanwhile, the patented Pitman and Idler Arm Support Kit helps eliminate steering play, a common weak point on GM HD trucks. You’ll also benefit from the Fox 2.0 remote reservoir shocks, which stay cool and consistent no matter how hard you push them. They soak up the bumps and keep your truck feeling planted whether you’re daily driving, towing heavy loads, or exploring rough terrain. Best of all, it’s made, built, and assembled in the USA with quality and reliability in mind.

Built For HD Performance And Backed By Proven Engineering

This Cognito 4-inch Performance Lift Kit is purpose-built for 2011-2019 GM Silverado and Sierra 2500HD and 3500HD trucks, including both 2WD and 4WD models. The design centers around improving geometry and performance at ride height, starting with a non-torsion bar drop configuration that helps maintain optimal CV angles. The SM Series boxed upper control arms come equipped with heavy-duty ball joints, polyurethane bushings, and reinforced construction that enhances durability in demanding conditions. Steering is reinforced by Cognito’s patented Pitman and Idler Arm Support Kit, which addresses a long-standing issue in GM truck steering systems by minimizing forward and backward center-link movement. The included Fox 2.0 Performance Series Remote Reservoir shocks feature aluminum bodies for superior heat dissipation and are tuned specifically to match the lift, ensuring responsive handling and control. A 1-inch rear lift is achieved using powder coated steel blocks and heavy-duty U-bolts, leveling the truck from front to back. This kit also allows for 35x12.5 tires on a 9-inch wide wheel with 5.75-inch backspacing, making it easy to dial in a bold and functional setup.

Fitment: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 GM Silverado/Sierra 2500HD/3500HD

Notes:

• Fits 2011-2019 GM Silverado/Sierra 2500HD and 3500HD
• Compatible with both 2WD and 4WD models
• Allows up to a 35x12.5 tire on a 9-inch wide wheel with 5.75-inch backspacing
• Includes all necessary components for installation
• Estimated install time is approximately 13 hours
• Engineered, manufactured, and assembled in the USA
• Designed to correct ball joint and CV angles
• Improves steering system longevity with included PISK support kit
• SM Series control arms feature welded, boxed steel construction
• Lift is achieved without dropping torsion bars
• Fox shocks are factory-tuned for lifted applications
• Professional alignment recommended after installation