UMI Performance 2318-UC K-Member Suspension Subframe for GM F-Body

The UMI Performance 2318-UC K-Member is a high-performance replacement subframe engineered for 1993–2002 GM F-Body vehicles. Tipping the scales at 30 lbs lighter than the factory unit, this K-member is purpose-built for performance applications using motor plates. It features factory-compatible power steering rack mounts, accepting both OEM power steering racks and manual racks that utilize factory power steering mount locations.

The 2318-UC is available in bare metal finish or optional powder coat in red or black (sold separately). Factory locator pins are included for a precise, bolt-in fit — no cutting or grinding required.

Construction & Engineering Highlights:

• Main center tube: 1.500" x 0.120" DOM seamless steel tubing
• Cross braces: 1.250" x 0.120" DOM seamless steel tubing
• Dual tube center section for increased rigidity over competing designs
• TIG and MIG welded construction for superior strength and durability
• Front and rear A-arm mounts CNC machined from 0.188" thick steel plate
• Rear A-arm mounts gusseted to withstand extreme side loads
• All mounting plates CNC machined for hole-to-hole accuracy
• Completely fixture welded for factory-quality fitment
• Factory locator pins included for easy, exact installation

Performance Benefits:

• Reduces front-end weight by approximately 30 lbs versus the factory K-member
• Additional clearance for headers and turbo piping
• A-arm slots lengthened 1/2" for increased alignment adjustment range
• Rear main cross tube lowered for improved oil pan clearance and protection
• Optional durable powder coat finish available in red or black

The UMI Performance 2318-UC is designed to be used in conjunction with motor plates and is supplied without motor mount stands. This K-member is a direct-fit solution for racers and performance enthusiasts looking to shed weight and gain chassis flexibility on 1993–2002 GM F-Body platforms.