RS-R Best-i Active Coilovers are a premium suspension solution engineered specifically for vehicles equipped with factory electronically controlled dampers, such as Toyota’s AVS (Adaptive Variable Suspension). Rather than eliminate your car’s factory electronics, RS-R builds upon them — delivering enhanced performance while retaining full functionality of OEM adjustable suspension systems.

Each Best-i Active system features RS-R’s proprietary valve tuning and advanced mono-tube damper design, calibrated to enhance the handling dynamics of your vehicle across all driving modes. Whether you're cruising in Comfort mode or attacking backroads in Sport+, the system dynamically adjusts to driver input and road conditions, offering a smoother ride in daily driving and sharper feedback when pushed.

The coilovers come standard with threaded case height adjustment, custom RS-R spring rates, and rubber-isolated upper mounts (or camber-adjustable pillowball mounts depending on application) to ensure noise and harshness are minimized without sacrificing response. Ride height can be dialed in precisely for form or function, and the entire assembly is made in Japan with track-tested durability in mind.

For enthusiasts who want OEM integration without compromise, Best-i Active offers the perfect blend of technology, comfort, and capability. From the streets to the track, it lets your factory electronics work smarter — and your chassis feel sharper.

• Fully compatible with OEM adaptive suspension systems like Toyota AVS and similar
• Mono-tube dampers with performance-tuned valving for improved road feel and consistency
• Threaded body height adjustment allows for precise stance control without affecting damper travel
• Daily-drivable comfort that transitions into sharp, planted dynamics on demand
• Made in Japan with rigorous quality control and motorsport-grade materials