Description
RS-R Super Down Lowering Springs give 2021+ Lexus IS300/350 RWD (IS300) the brand's more aggressive fixed spring ride height. The application is vehicle-specific rather than a universal spring solution, so spring rate and drop are selected around this chassis.
Why Choose RS-R Super Down?
Super Down targets a substantially more aggressive ride-height reduction than Down Sus. RS-R positions the series for customers prioritizing a very low stance; available ground clearance, alignment range and local road-use requirements should be checked carefully before installation.
Vehicle Fitment
- Vehicle: 2021+ Lexus IS300/350 RWD
- Chassis: IS300
- Drivetrain / Trim: RWD
- RS-R Part Number: T591S
Technical Specifications
| Specification | Front | Rear |
|---|---|---|
| Approximate Ride Height Change | -45mm to -50mm (-1.8in to -2.0in) | -40mm to -45mm (-1.6in to -1.8in) |
| Spring Rate | 5.20 kg/mm | 8.67 kg/mm |
Ride-height figures are approximate manufacturer development data and can vary with vehicle specification, mileage, load and installation.
Before Ordering
Because Super Down uses a more aggressive target ride height, confirm tire clearance, alignment range and practical ground clearance for your intended use before installation. This listing is application-specific to the stated drivetrain/trim (RWD); verify that detail rather than ordering by model year alone.