Reiger Suspensions - Gravel Rally Dampers - Mitsubishi EVO VIII 2003-05 - 5x114.3

Reiger Suspension represents the highest level of rally and off-road damper technology available today. Proven at the top tiers of international rally competition with 7 WRC titles and 11 Dakar victories, Reiger dampers are widely regarded as best-in-class for professional rally racing and extreme off-road applications.

Each set of Reigers are highly customizable, with options much beyond what are listed here. If you are looking for a specialized setup, please CONTACT US. We’d love to talk to you about your build and tailor a configuration specifically for your vehicle, driving style, and intended use.

There are three different options available depending on application, with many customization options available: On MacPherson Style dampers (example all STi Front) we will have options for a 50mm Inverted Twin Tube 5062, or the WRC style 58mm Triple Tube 570. For non MacPherson style (example 2008+ STi Rear) we would typically have a 46mm monotube B46 setup. Each of these styles would typically be available as 0,1,2 or 3-way adjustable.

1-Way vs 2-Way vs 3-Way?

1-Way Dampers allow for rebound adjustment only and typically house all components within a single body typically without an external reservoir. This makes them lighter, more compact, and less expensive, while still delivering reliable performance. However, with less overall oil and gas volume, they are more prone to heat saturation and pressure fade during extreme conditions or long stages. They are also less fine-tunable by the end user.  

2-Way Dampers will allow independent compression and rebound adjustments and allow overall control, but are vehicle specific on how they are adjusted. 

3-Way Dampers typically use a piggyback or remote reservoir to add oil and nitrogen volume. This increases thermal capacity, improves heat dissipation, and helps maintain consistent pressure to reduce aeration/cavitation under heavy use. They provide rebound, plus independent low-speed and high-speed compression adjustments.

“High” and “low” speed refer to damper shaft velocity, not vehicle speed. Sharp, rapid events (potholes, curbs, rumble strips) load the high-speed compression circuit. Gradual chassis motions (roll in cornering, pitch under braking/accel, heave with aero load) act mainly on the low-speed compression circuit. Independent low/high-speed compression and rebound give a broad tuning window to match grip, ride, and platform control to conditions.

Inverted or Triple-Tube?

5062 Inverted dampers place the large-diameter hard chrome tube on the outside, with the shaft and piston assembly operating inside it, allowing the internal components to remain continuously lubricated and cooled by oil. Because the main structural tube is external and significantly larger in diameter, inverted designs offer greater surface area, improved rigidity, and substantially better resistance to side-loads compared to conventional upright dampers. The chrome body slides on large 50mm ID bushings with proper sealing and lubrication, delivering smooth, consistent damping performance across a wide range of conditions. This makes inverted dampers rugged, compact, and well-suited for track use and medium-duty rally applications, while still being relatively cost-effective and serviceable compared to more complex multi-tube rally designs.

570 Triple-Tube These dampers represent the latest in motorsport-engineered MacPherson strut design, typically featuring an integrated bottom-mounted reservoir that houses the sealed damper assembly within a robust triple-tube outer shell. This construction utilizes a large 57mm+ diameter chrome tube and bushings, significantly increasing strength and resistance to side-loads compared to conventional designs. Unlike inverted setups that rely on greased bushings, the triple-tube configuration allows the working assembly to be fully suspended in oil, ensuring superior lubrication, cooler operation, and extended service intervals. As an evolution of the traditional twin-tube design, the added outer chamber improves heat management, reduces fluid cavitation, and maintains consistent damping performance during long, demanding stages. The increased diameter and oil-supported structure make this the most rugged MacPherson strut configuration available — the same style used in top-level rally platforms such as WRC cars, where extreme lateral forces and long suspension travel can overwhelm lesser systems.

Non-Inverted B46 Dampers utilize a monotube design intended for suspension positions that are not subjected to significant side-loading forces, making them ideal for rear multi-link applications. Unlike front suspension systems, which must manage steering input and lateral loads, the rear suspension primarily controls vertical damping forces. This allows for a simpler, lighter, and less complex monotube configuration that delivers precise damping performance without the added structural requirements of a strut-style assembly. Like the front dampers, B46 units can also be equipped with hydraulic bump stops and adjustable rebound control to further refine performance and durability

Hydraulic Bump Stops

Hydraulic bump stops are hydraulic pistons that provide additional damping during the final portion of suspension travel. When a damper reaches full compression, it bottoms out, and the remaining energy is typically absorbed by a rubber bump stop. With a traditional rubber stop, this impact can be abrupt, potentially unsettling the chassis and reducing steering control.

A hydraulic bump stop replaces the rubber unit with a compact hydraulic damper that engages during the final 1-3 inches of suspension travel. Instead of a sudden impact, it slows compression in a controlled and predictable manner, significantly reducing harshness and improving vehicle stability under extreme loads.

Reiger Hydraulic bump stop technology is considered some of the best in the world, and what sets it far apart from it’s competitors.  They are available as Double Piston (DP) design for 5062, 570 and B46, or a more advanced Hydraulic Double Piston (HDP) configurations for 570 and B46 dampers. A HDP setup allows for a more progressive damping curve, meaning the resistance increases in stages as compression continues. This enables finer tuning of bottom-out control and is commonly used in high-level motorsport applications such as WRC, where precise suspension behavior under heavy compression is critical.

Rebound Control Valves

Front 570 and rear B46 dampers can be outfitted with specialized Rebound Control Valves (RCV) designed to optimize suspension behavior when the vehicle is airborne. Once the tires lose contact with the ground, the RCV system kicks in and bypasses typical rebound, allowing the damper to fully extend at a much quicker rate. This maximizes suspension travel when landing to absorb impacts more effectively, and maintain vehicle stability and control. 

Features

• 1-Way, 2-Way or 3-Way Independent Damping Adjustment
  • Rebound (1-way)
  • Compression (2-way)
  • High Speed Compression (3-Way Only)
  • Low Speed Compression (3-Way Only)
• Spherical Bearing Billet Aluminum Top Mounts (Application specific) 

Optional add-ons

• Hydraulic Rebound Stop
• Corner Control Valve (CCV)
• Intelligent Compression System (ICS)
• Integrated Front and Rear External Reservoirs
• Dry-Break Fittings
• Snow or Tarmac Spring rates