HRD AIR

HRD AIR Dampers are engineered to meet the needs of enthusiasts seeking enhanced suspension performance with dynamic ride height without disrupting the refinement of their ride quality. When paired with a management system, you will achieve fully pneumatically adjustable ride height, allowing you to dynamically change your ride height on demand. We believe that air suspension should feel just as performance oriented as properly configured traditional coilovers. That's why our HRD AIR Dampers were designed alongside our Street Performance Damper lineup with the goal of creating the ultimate air strut with no compromises.

Our HRD AIR lineup is compatible with popular management kits such as the 3H and 3P offerings from Air Lift Performance. These management kits are available as an optional add on from HRD for enthusiasts seeking a complete install ready package. We recommend pairing our HRD AIR Dampers with the 3H or 3P kits from Air Lift due to their history of reliability, ease of install, and easy to use controller.

Each set of our dampers features our proprietary stainless steel pillowball bearings, designed to increase longevity on cars driven in all weather conditions. HRD also utilizes our own titanium hardware including top hat studs and nuts, damping adjustment knobs, and our pillowball bearing collars. Electrophoretic deposition (EDP coating) is used on all of our shock bodies to further increase the longevity of our dampers in adverse climates. We've designed HRD AIR with all climates in mind, and we've taken steps to engineer solutions into each kit we manufacture.

Fully Pneumatically Adjustable Ride Height

Air suspension has come a long way as it has become more and more popular as an alternative to traditional coilover kits. While traditional coilover kits utilize a spring-on-damper to control weight transfer, air suspension replaces the conventional spring for a rubber air bag created out of a reinforced high-strength compound designed for durability and fatigue resistance. Instead of a spring providing resistance to your vehicles weight, with air suspension your bag fills with pressurized air.

This pressure is dynamic and controlled by your management system, with higher pressure raising your ride height, and lower pressure lowering your ride height. You can think of air suspension as an innovative solution to achieve variable and dynamic ride height on the fly, which is otherwise not achievable with traditional spring-on-damper coilover setups. We engineered our HRD AIR lineup alongside our Street Performance Dampers with the goal of creating an air suspension option with all of the performance of a properly configured coilover system, but with the added benefit of dynamic ride height.

Compatibility with Popular Management Kits

We recommend pairing a 3H or 3P management kit from Air Lift Performance with our HRD AIR Dampers. Most enthusiasts elect for the 3P option paired with 1/4" air lines, 4 gallon tank, and a single chrome Viair 444c compressor. With Air Lift management kits, you'll have easy control over your ride height with the push of a button. By pairing our HRD AIR Dampers with a management system from Air Lift, you get the ultimate air suspension setup with a plug and play installation.

Our HRD AIR Dampers are also compatible with all other leading management kits as we provide our kits with both quick disconnect fittings and leader lines. Air Lift Performance management kits, compressors, tanks, and more are available on our website.

Dual Duty Digressive Damper™

Each set of suspension from HRD features a monotube design utilizing our Dual Duty Digressive Damper™ technology. Digressive valving provides higher damping force at low piston speeds. This improves control during low-speed events such as cornering, braking, and acceleration, allowing for better vehicle stability and handling.

At higher piston speeds, the damping force levels off, allowing for softer reactions to bumps, potholes, and other road imperfections. This ensures that the ride remains both comfortable and refined while maintaining excellent tire contact with the road for improved grip.

This technology has allowed HRD to create a suspension system that feels balanced and predictable under all conditions. It provides the stiffness needed for precise handling during performance driving and the refinement required for everyday road conditions.

Monotube Construction

HRD's monotube damper design separates the damping oil and gas chamber with a floating piston. This configuration dissipates heat more effectively, ensuring consistent damping performance during prolonged or intense use, such as extended track days.

Our monotube design accommodates a larger piston, allowing for more precise and consistent damping control across the entire valving curve. This enhances the overall effectiveness of the suspension system, making it more responsive to both low-speed and high-speed events.

Monotube dampers are constructed with a single, larger-diameter tube, which is inherently stronger and more durable than alternatives such as twin-tube designs. This makes them ideal for high-performance applications where durability and reliability is paramount.

Electrophoretic Deposition (EDP) Coating

This advanced coating method involves submerging components in an electrically charged bath containing epoxy or acrylic resins. The electric current evenly deposits the coating onto the component’s surface, even reaching intricate crevices and hard-to-coat areas. Once applied, the coating is baked to create a durable, uniform finish that is highly resistant to corrosion, chipping, and wear. For coilovers, which are often exposed to harsh conditions such as road salts, debris, and moisture, EDP coating provides exceptional longevity and maintains both structural integrity and aesthetics.

Compared to alternative options like powder coating or zinc plating, EDP coating offers superior uniformity and coverage. Powder coating, while durable, can sometimes leave small gaps or uneven finishes in hard-to-reach areas, leading to potential corrosion vulnerabilities. Zinc plating, on the other hand, provides basic corrosion resistance but lacks the robustness and longevity of EDP coating, especially under extreme environmental stress. EDP coating helps ensure that your dampers maintain their appearance and functionality for years without premature wear even in adverse climates.

Features

• 15 Way Adjustable Compression and Rebound
• Dual Duty Digressive Damper™ Technology
• Proprietary Stainless Steel Pillowball Bearings
• Titanium Hardware on Studs, Nuts, and Pillowball Collars
• Titanium Damping Adjustment Knobs
• Compatible with Popular Management Kits such as Air Lift 3H and 3P
• Comes with Quick Disconnect Fittings and Leader Lines
• Anodized Aluminum T6 6061 Camber Plates and Mounts
• Monotube Damper with High Pressure Nitrogen
• Durable Anodized 7075 Aluminum Spanner Wrenches
• All-Weather EDP Coating on Shock Bodies
• Assembled in the United States
• 5 Year Limited Manufacture's Warranty

Track Ready, Daily Approved

HRD AIR was designed from the ground up for the enthusiast seeking a refined and composed ride on the street that simultaneously inspires confidence when pushed to the limits. We've intentionally engineered our suspension with the dual duty purpose many of us build our cars for - something you can enjoy thoroughly in your day to day use, while being ready to tackle weekend track days without breaking a sweat.

If you're seeking a transformative change to your car's suspension, elevate your driving experience with HRD AIR. Built from the ground up for enthusiasts like you in mind that are looking for the ultimate dual duty solution.

Bespoke Builds Available

Super-low dampers and other options are available from HRD. While our off the shelf kits are designed as the ultimate plug and play solution for the majority of enthusiasts, our engineers are capable of building a bespoke set of air dampers just for you. Lead times on customized air dampers are between 4 and 8 weeks, subject to our manufacturing capacity. For more information on selecting specs for your bespoke set of HRD dampers you can email tech@happyracer.com or visit our website.

The HRD Way

It is our mission at HRD to engineer motorsport products that are transformative to how your vehicle feels both on and off the track. From the moment you begin the unboxing experience, you will feel the passion and love that has gone into even the smallest of details across the entire HRD product line. Our team has set out to create components that we would be proud to recommend to our friends and family. With no expense spared, it is our mission to redefine expectations for motorsport enthusiasts across the globe, and we hope that you will join us on this journey.

Warranty

HRD AIR is covered under a 5 year limited manufacture's warranty. More information can be found on our warranty page.