TEIN SKL42-S3B00 S.Tech Lowering Springs for 2004-2007 Scion xB FWD NCP31L

Vehicle Fitment

• 2004-2007 Scion xB (NCP31L, 1.5L I4, FWD)

Features

• S.Tech progressive lowering springs tuned for street-performance balance
• High-strength Chrome Vanadium SAE9254V spring construction
• Durable green powder coat finish for corrosion resistance
• Engineered for use with OEM or OEM-replacement dampers
• Improves stance with lower ride height and reduced squat
• Enhances handling response with reduced body roll
• Includes silencer rubbers on applicable models
• Backed by TEIN's 1-year limited warranty

Specifications

• Part Number: SKL42-S3B00
• Series: S.Tech Lowering Springs
• Spring Type: Progressive coil springs
• Front Spring Rate: ~2.3 kg/mm (≈ 129 lbs/in)
• Rear Spring Rate: ~2.9 kg/mm (≈ 162 lbs/in)
• Approximate Ride Height Drop: Front ~-1.1" (~-28 mm)
• Approximate Ride Height Drop: Rear ~-0.9" (~-23 mm)
• Compatibility: Front & rear springs for FWD chassis

Included Components

• 4x Lowering springs (front & rear)
• Silencer rubbers (if applicable)
• Warranty documentation and installation guide

Product Description

The TEIN S.Tech Lowering Springs (Part No. SKL42-S3B00) are designed specifically for the 2004-2007 Scion xB (NCP31L) with the 1.5 L I4 engine and front-wheel-drive configuration. These springs lower the ride height approximately 1.1" in the front and 0.9" in the rear compared to stock, giving the xB a sportier appearance and improved handling characteristics without sacrificing daily-drive comfort.

Constructed from high-strength Chrome Vanadium SAE9254V material with TEIN's signature green powder coat, this S.Tech set provides a progressive spring rate that helps balance ride quality and enhanced performance. Designed to work with original or OEM-replacement dampers, the springs help reduce body roll and improve cornering response. Silencer rubbers (on applicable models) help minimize noise, and the included 1-year limited warranty covers manufacturing defects and excessive sag, making these springs a reliable upgrade for Scion xB owners seeking a lower stance and better handling.