Coilover Kit, Rear Eccentric Pass-Through Lower Mount

A standout feature is the unique rear eccentric pass-through lower mount, which enables a greater range of lowering capability while preserving ride quality by allowing for a longer shock absorber. ZZP offers three distinct versions: Standard, Extra Low, and Sport, each tailored to specific lowering desires and performance goals. The Standard version provides a drop of approximately 0-2.0 inches with a 6kg front and 6kg rear spring rate, suitable for those seeking improved handling and adjustability over stock suspension. The Sport version, introduced in April 2023, features the same spring lengths and mounts but with an increased 8kg front and rear spring rate, specialized valving, and heavier shock oil for enhanced track performance, offering a drop of roughly 0-1.75 inches. The Extra Low version is designed for maximum lowering, capable of tucking tires, and includes a shorter shock and a different spring configuration for a drop of approximately 1.5-4.0 inches. An ordering note advises against the Extra Low kit unless significant lowering is intended. Key features across the range include monotube construction for consistent damping, linear damping curves, and 32 distinct clicks of simultaneous compression and rebound adjustment for fine-tuning. Front pillowball mounts and adjustable camber plates, along with rear offset eccentric pass-through lower mounts, contribute to precise alignment and handling. Road noise isolators are incorporated on the front springs to minimize NVH. Height adjustability is managed via the shock body in the front and a high/low adjuster in the rear, with pre-load set to optimize ride quality and handling. All components are treated with anodizing or powder coating to resist rust, and the kit comes with a best-in-class 2-year ZZP warranty. Fitment is designed around stock wheels from the Cobalt SS, Ion Redline, and HHR SS. However, due to the rear lower mount design, some aftermarket wheels might require a slight spacer depending on width and offset. It is crucial to test wheel fitment, including rotation, with the rear shock installed at ride height before final installation. Installation notes emphasize ensuring at least 25-30mm of thread engagement in the rear lower mount to prevent premature failure. Maintenance recommendations include regular oiling of the front pillowball mounts. ZZP also offers optional extra clearance rear mounts for wider wheel applications. These coilovers are compatible with 2005-2010 Chevrolet Cobalt SS/LS/LT, 2008-2010 Chevy HHR SS/LS/LT, 2007-2009 Pontiac G5/G5 GT, and 2005-2009 Pontiac Pursuit. ZZP also highly recommends installing their progressive bump stops for improved ride quality and handling.