15-21 Subaru STI GR50PRO

he Flatout Suspension Stage Rally Suspension for the 2015–2021 Subaru STI is engineered for the extreme demands of competitive rally racing. Built with massive 50mm inverted dampers, oversized 62mm shock bodies, and external reservoirs, this suspension system is designed to deliver exceptional durability, control, and fade resistance on rough rally terrain.

With advanced 3-way damping adjustment, long-travel suspension geometry, and premium motorsport components throughout, this setup provides the performance and reliability serious rally drivers demand.

Specifications

• Designed specifically for Stage Rally
• Includes:
  • 2 Front Assemblies with reservoirs
  • 2 Rear Assemblies with reservoirs

Suspension Features

• 50mm Pistons with Massive 62mm Bodies
  Heavy-duty construction built for harsh rally conditions and repeated impacts.
• 3-Way Damping Adjustment
  Independent adjustment for:
  • High-Speed Compression
  • Low-Speed Compression
  • Rebound
• Long-Travel Suspension Design
  • 6.5” Front Travel
  • 6” Rear Travel
• Inverted Shock Design
  Improves strength, rigidity, and durability under aggressive driving conditions.
• Eibach 70mm Metric Springs
  • 225F / 225R spring rates
  • Includes secondary helper springs
• Radial Bearing Front Assemblies
  Enhances steering response and suspension articulation.

Premium Components

• Electro-plated nickel cartridges
• CNC-machined high-flow aluminum pistons
• Stainless steel shims
• Medium-weight synthetic shock oil
• Spherical bearing upper mounts
• Brackets for sensor lines included
• Fully rebuildable and serviceable
• Individual replacement parts available

Additional Information

• Built to order
• Estimated lead time: 8–10 weeks