Product Details
RS-R Down Sus lowering springs for the 2008-2015 Mitsubishi Evolution X (CZ4A) drop the car into a cleaner, more purposeful stance while tightening body roll and sharpening turn-in on everyday roads. Each set is engineered specifically for this Evolution chassis, so drop, spring rate and factory damper tune stay in balance — the car sits where you want it and still drives like a daily.
Racing Studio-R built its first suspension in Osaka in 1972 and has been refining the Down Sus spring for more than fifty years. Each set is progressive-rate, cold-wound and heat-treated in-house in Japan, then matched to the factory shock valving and ride-height target of the specific chassis it bolts onto. Backed by RS-R’s 3-year / 50,000 km fatigue warranty.
Features
- Progressive-rate coil tuned to the factory damper
- Vehicle-specific drop and rate — no universal cuts
- Cold-wound from high-grade SAE alloy steel
- Powder-coated for long-term corrosion resistance
- 3-year / 50,000 km RS-R spring-fatigue warranty
- Made in Osaka, Japan
Specifications
| Part Number | B250D |
| Part Name | RS-R Down Sus Lowering Springs |
| Vehicle | 2008-2015 Mitsubishi Evolution X |
| Chassis Code | CZ4A |
| Ride-Height Adjustable | No |
| Spring Type | Progressive |
| Approximate Drop - Front | -25mm to -30mm (-1.0inch to -1.2inch) |
| Approximate Drop - Rear | -20mm to -25mm (-0.8inch to -1.0inch) |
| Spring Rate - Front | 3.81 Kg/mm |
| Spring Rate - Rear | 3.91 Kg/mm |
| Warranty | 3 Years / 50,000 km |