Description
RS-R Down Sus Lowering Springs give Lexus RC-F / GS-F (USC10) a vehicle-specific way to reduce ride height while retaining the factory-style damper and spring layout. This is a straightforward option for owners who want a cleaner stance without the added adjustment and complexity of a full coilover system.
Why Choose RS-R Down Sus?
Down Sus is RS-R's standard lowering-spring line, developed around each vehicle's factory suspension geometry, damper behavior, spring rate and target ride height. It is the sensible choice when the goal is a cleaner stance and a more tied-down feel without replacing the complete damper assembly.
Vehicle Fitment
- Vehicle: Lexus RC-F / GS-F
- Chassis: USC10
- RS-R Part Number: T999D
Technical Specifications
| Specification | Front | Rear |
|---|---|---|
| Spring Rate | 8.67 kg/mm | 14.40 kg/mm |
Ride-height figures are approximate manufacturer development data and can vary with vehicle specification, mileage, load and installation.
Before Ordering
Lowering springs are fixed-height components. Final ride height can vary with vehicle condition, factory options, mileage and load, so published drop figures should be treated as approximate. This RS-R part number is used across RC-F / GS-F applications; published ride-height change varies by exact chassis and model year, so the numerical drop is intentionally omitted here.