TEIN VSBBS-CUAA4-C Flex Z Full Coilover Kit with Upper Mounts

The TEIN Flex Z (VSBBS-CUAA4-C) is a complete, ride-height-adjustable coilover kit engineered with TEIN's full suite of performance suspension technology at an exceptional price point. Manufactured in Yokohama, Japan, the Flex Z inherits all the features and quality of the Street Flex line while leveraging TEIN's updated manufacturing platform to deliver premium performance without the premium price.

At the core of the Flex Z is a twin-tube shock absorber design paired with a full-length ride height adjustment system. This allows you to dial in your desired stance while maintaining proper shock travel and ride quality throughout the adjustment range. Front lowering range is 0.0" to 2.5" and rear lowering range is 0.6" to 2.8".

Key Features:

• 16-Way Damping Force Adjustment — Compression and rebound are adjusted simultaneously via TEIN's ADVANCE Needle valve technology, delivering a wide, linear range of damping adjustment per click. Tune from a comfortable daily-driver setting to a firmer sport or track setup
• Full-Length Ride Height Adjustment — Adjust stance without sacrificing suspension travel or ride quality
• Twin-Tube Construction — Provides a smooth, compliant street ride with excellent handling characteristics
• Camber-Adjustable Pillow Ball Front Upper Mounts Included — Front mounts allow for camber adjustment to optimize alignment after lowering
• Reinforced Rubber Rear Upper Mounts Included — Rear mounts provide NVH isolation while maintaining structural rigidity
• ZT Coating — Multi-layer proprietary rust-preventive coating applied to all damper bodies for long-term durability and a quality finish
• EDFC Compatible — Compatible with TEIN's Electronic Damping Force Controller (EDFC) series for in-cabin damping adjustments (recommended for this application due to limited manual access)
• Spring Rate: 6 kgf/mm front and rear
• Sealed / Maintenance-Free Design — Factory-sealed dampers reduce maintenance requirements over the life of the kit
• Complete Kit: Includes 4 shock absorbers, 4 springs, and all upper mounts

Installation Note: Professional installation by an ASE-certified mechanic is strongly recommended. A full wheel alignment is required after installation. Due to the vehicle's structure, the cowl cover and top panel must be removed and/or modified to manually adjust damping force on this application — use of the TEIN EDFC system is highly recommended for both front and rear.