UMI Performance Stage 2.5 Handling Kits ABF804-1-B

Stage 2.5 kit ABF804-1-B moves up from the fixed-spring Stage 2 kits with adjustable coilovers front and rear that drop ride height from stock down to roughly 2" lower. UMI builds this one around GM vehicles running the stock GM axle housing; an aftermarket rear axle housing may not line up with the rear coilover mounts. What to check before buying Front and rear sway bars measure 1.250" and 1.000" respectively, and the tubular control arms ride on a mix of polyurethane and Delrin bushings rather than polyurethane alone. A chassis stiffener is included, though subframe connectors are not, so check whether your car already has those if you're chasing extra chassis rigidity. Common questions How much lower will my car sit? The coilovers let you dial in anywhere from stock height down to about 2" lower. Will this fit an aftermarket rear axle? UMI engineers the rear coilover mounts around the stock GM axle housing, so an aftermarket housing may need extra fitment work. Specifications Feature Details Brand UMI Performance Manufacturer Part # ABF804-1-B Product Type Suspension Handling Package Front Coil Springs Included? Yes Rear Coil Springs Included? Yes Front Shocks Included? Yes (Adjustable Coilover) Rear Shocks Included? Yes (Adjustable Coilover) Ride Height Adjustment? Yes (Stock to -2”) Front Sway Bar Diameter 1.250” (31.75mm) Rear Sway Bar Diameter 1.000” (25.40mm) Upper Control Arms Included? Yes (Tubular) Lower Control Arms Included? Yes (Tubular) Bushing Material Polyurethane & Delrin Subframe Connectors Included? No Chassis Stiffener Included? Yes Mounting Hardware Included? Yes Installation Type Direct Bolt-On Quantity Sold as a Kit