RS-R Super Down Sus springs for the 2015+ Lexus RC300 (GSC10/ASC10) deliver an aggressive, tucked stance without giving up daily drivability. The progressive-rate coils close up the fender gap, drop the center of gravity and tighten body roll through corners, while RS-R’s vehicle-specific rate tuning keeps the ride compliant on rough pavement.
The Super Down Sus takes RS-R’s progressive-rate Down Sus platform and dials in a more aggressive drop for drivers who want real stance without jumping to a full coilover. Every set is cold-wound in Osaka, Japan to a vehicle-specific rate so the car stays daily-capable at the lower ride height. Covered by RS-R’s 3-year / 50,000 km spring-fatigue warranty.
Features
Specifications
| Part Number | T995S |
| Part Name | RS-R Super Down Sus Lowering Springs |
| Vehicle | 2015+ Lexus RC300 |
| Chassis Code | GSC10/ASC10 |
| Drivetrain | RWD |
| Ride-Height Adjustable | No |
| Spring Type | Progressive |
| Approximate Drop – Front | -40mm to -45mm (-1.6in to -1.8in) |
| Approximate Drop – Rear | -25mm to -30mm (-1.0in to -1.2in) |
| Spring Rate – Front | 5.20 Kg/mm |
| Spring Rate – Rear | 10.00 Kg/mm |
| Warranty | 3 Years / 50,000 km |
| Notes | – |


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