Product Details
RS-R Black-i coilovers for the 2001-2006 Lexus LS430 are engineered from the damper piston up for one job: going low without breaking the ride. Where a normal coilover bottoms out or rides like plywood at aggressive drop heights, Black-i has revised valving, extended lower-mount travel, and spring rates matched to the lowered range. You get the slammed stance your build wants with damping that still works over real-world pavement.
Black-i is RS-R’s purpose-built extreme-drop coilover. Where a normal coilover bottoms out or rides poorly at aggressive ride heights, Black-i is engineered from the damper piston up for cars that are going low — revised internal valving, longer perch travel, and spring rates matched to the extended drop. Still 36-level damper adjustable, still rebuildable. Built for slammed daily drivers who don’t want the ride quality to fall apart at height.
Features
- Valving engineered for extreme ride-height drop
- Extended lower-mount travel
- 36-level single-knob damping adjustment
- Vehicle-specific spring rates for the lowered range
- Monotube, hand-assembled in Japan
- Rebuildable / serviceable dampers
- 1-Year / 12,000-mile RS-R warranty
What’s Included
- Full coilover set (front and rear)
- Hex and allen wrenches
- Upper rubber seat for rear
- Hex nut, bolt and washer for rear shock
- Waterproof rubber damper cover
- Spring tubes for front and rear
Specifications
| Part Number | XBKT170M |
| Part Name | RS-R Black-i Coilovers |
| Vehicle | 2001-2006 Lexus LS430 |
| Damping Adjustment | 36-Level Single-Knob |
| Ride-Height Adjustable | Yes |
| Damper Construction | Monotube |
| Preset Approximate Height - Front | -55mm (-2.2inch) |
| Preset Approximate Height - Rear | -45mm (-1.8inch) |
| Maximum Adjustment Range - Front | +40mm to -185mm (+1.6inch to -7.3inch) |
| Maximum Adjustment Range - Rear | -30mm to -170mm (-1.2inch to -6.7inch) |
| Recommended Adjustment Range - Front | -50mm to -70mm (-2.0inch to -2.8inch) |
| Recommended Adjustment Range - Rear | -35mm to -70mm (-1.4inch to -2.8inch) |
| Spring Rate - Front | 18.00 Kg/mm |
| Spring Rate - Rear | 10.00 Kg/mm |
| Upper Mount - Front | Rubber Bushings (OEM-style) |
| Upper Mount - Rear | Rubber Bushings (OEM-style) |
| Suspension Design - Front | True Coilover |
| Suspension Design - Rear | Divorced |
| Rebuildable | Yes |
| Warranty | 1 Year / 12,000 Miles |
Vehicle Fitment
- 2001-2006 Lexus LS430