The GKTech strut tops offer a straightforward, bolt-on solution for your coil overs, requiring no additional modifications. Easily accessible bolts on the strut top allow for on-car adjustment of both camber and caster, providing a significant adjustment range. Adjustment Range: Caster Adjustment: 1.5° (-1.0° to +0.5° relative to OEM) Camber Adjustment: 8.0° (-3.0° to +5.0° relative to OEM) Engraved increments of 0.5° for precise adjustment On-car adjustment for both camber and caster The main plate is precision CNC machined from lightweight 6061-T6 billet aluminium, while the adjuster boasts high-strength 4130 billet chromoly steel. Our strut tops feature a common COM12T spherical bearing, PTFE-lined for maintenance-free lubrication, reducing unwanted movement and increasing performance compared to rubber-style bushings. All of this is assembled with high tensile hardware and locking nuts. Materials: Main Plate: Billet 6061-T6 Aluminium. Adjuster: Billet 4130 Chromoly steel. COM12T PTFE lined bearings. Grade 10.9 high tensile bolts The design of the coil over adapter spacers ensures maximum misalignment, especially beneficial for high camber and high lock situations, promoting unrestricted movement and rotation of the coil over without binding. The spacers are designed to accommodate various coil over brands which are listed below. Confirmed Coil over fitment: BC Racing Bilstein (B6, B8, B14, B16) Feal Suspension Fortune Auto Koni KW MCS OEM Parts Shop Max RCE Tarmac ST Suspension Öhlins Road & Track TEIN (Street Basic) TRD RSR Black/Sport