TEIN SAP13-K2931 Street Advance Z Coilover Suspension Kit

The TEIN SAP13-K2931 Street Advance Z is a full coilover suspension kit engineered and manufactured in Japan for drivers who demand a balance of street comfort and spirited performance. Designed as a direct-fit replacement and upgrade over factory suspension, the Street Advance Z delivers ride height adjustability, improved handling, and tunable damping in a single, complete package.

Key Features:

• Twin-Tube Damper Construction: Provides a longer stroke with reduced repulsive force for improved ride comfort compared to monotube designs
• 16-Level Damping Force Adjustment: Linear damping adjustment system allows fine-tuning of compression and rebound to match driving style and road conditions
• Full-Length Ride Height Adjustment: Adjust ride height through the shock body for a lowered, aggressive stance without sacrificing suspension geometry
• No-Sag Springs: High-performance coil springs are engineered to maintain their rated spring rate over time and resist settling
• EDFC Compatible: Works with TEIN's optional Electronic Damping Force Controller (EDFC) for in-cabin damping adjustments without getting under the car
• Protective Shock Body Coating: Rust-resistant and debris-resistant coating protects the shock body for long-term durability
• Uses OEM Upper Mounts: Retains the vehicle's factory upper mounts, simplifying installation and reducing overall cost
• High-Performance Damper Oil: Specially formulated oil maintains consistent damping performance across a wide temperature range

The Street Advance Z coilover kit is ideal for enthusiasts seeking a capable, adjustable suspension upgrade for daily driving and spirited weekend use. TEIN backs each kit with decades of motorsport-derived engineering, ensuring platform-specific calibration for proper handling balance right out of the box.