UMI’s performance lowering springs are built to lower the 4th Gen approx. 1.25” - 1.5” (1.25” front and 1.5” rear designed to level the car) and increase the spring rates for a crisp handling experience. UMI springs are Made in USA of 5160 CrSi wire up front and 9254 CrSi wire in the rear. The 600 lb/in front rate and 200 lb/in linear rear rate reduces floating and body roll while still allowing for comfortable cruising and performance handling. Think of it as permanent sport mode! These springs work with the popular Koni’s and Bilstein’s along with other factory style dampers. 100% designed and manufactured with pride in the USA.

• Designed to level the car and increase spring rates for optimal handling
• Suitable for Pro-Tour, Auto-x, and general cruising applications
• Designed in collaboration with a top spring cup engineer
• 5160 CrSi wire up front and 9254 CrSi wire in the rear
• Compatible with popular dampers like Koni and Bilstein
• Front rate of 600 lb/in and a rear rate of 200 lb/in
• Firm yet comfortable ride with superior handling
• Made in the USA with high-quality materials
• 1.5” (1.25” front and 1.5” rear)
• Lower the car approximately 1.25”

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UMI’s heavy duty caster and camber plates allow you to make alignment changes that are not permitted with the factory strut mounts. These heavy duty strut mounts are fully TIG welded using ¼” steel and feature a chromoly Teflon lined spherical bearing. The chromoly spherical bearing replaces the factory rubber strut mount bushing. The spherical bearing features a Teflon race which keeps the bearing lubricated and noise free. The UMI strut mounts feature additional adjustment on the mounting plate and the bearing housing allowing the user to make changes for the track and the street. Mounts are also built with increased height to provide additional travel for lowered vehicles.

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UMI's tubular on-car adjustable panhard bar replaces the stock stamped panhard bar, offering increased strength and improved rear end adjustment. This upgrade is essential for centering the rear end after lowering the vehicle and allows for the use of larger tires. The double adjuster features left and right-hand threads, enabling easy on-car adjustments without removing the panhard bar from the vehicle. Polyurethane bushings at both ends eliminate bushing deflection without compromising ride quality. This heavy-duty panhard bar enhances rear stability, controls side movement, and reduces body flex. It is constructed from 1.250" x .095" DOM steel tubing with precision TIG welded seams. The CNC machined 4140 heat-treated chrome-moly adjuster and threaded tube adapter ensure durability. The panhard bar utilizes OEM hardware and can be installed in just 20 minutes. It also has a durable powder coat finish.

• High Quality Grease-able Polyurethane Bushings with Grease Fittings
• CNC Machined 4140 Heat Treated Chrome-Moly Adjuster
• Uses OEM Hardware, installs in 20 minutes
• 4140 Chrome-Moly Threaded Tube Adapter
• Quick and easy "On Car" Adjustments
• Precision TIG Welded Construction
• 1.250" x .095" DOM Steel Tubing
• Durable Powder Coat Finish

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This kit replaces your factory lower control arms and panhard bar with heavy duty tubular versions. These bolt-on replacements minimize wheel hop, improve cornering, and help with track consistency. The panhard bar increases rear stability and controls side movement, while the control arms reduce wheel hop. Both are made of Seamless DOM mild steel tubing for added strength over aluminum versions. They are CNC machined and TIG welded with polyurethane bushings, zinc plated steel sleeves, and grease fittings for easy maintenance. Installation is quick and easy, taking approximately 30 minutes using OEM hardware in factory mounting points.

• Control Arms Built Using 1.625" x 0.120" Steel DOM Tubing
• Panhard Bar Built Using 1.250" x 0.095" Steel DOM Tubing
• High Quality Fluted Polyurethane grease-able Bushings
• CNC Machined Zinc Plated Steel Sleeves
• Durable Powder Coat Finish
• TIG Welded Construction
• Uses OEM Hardware

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This kit replaces your factory lower control arms and panhard bar with heavy duty tubular versions. These bolt-on replacements minimize wheel hop, improve cornering, and help with track consistency. The panhard bar increases rear stability and controls side movement, while the control arms reduce wheel hop. Both are made of Seamless DOM mild steel tubing for added strength over aluminum versions. They are CNC machined and TIG welded with polyurethane bushings, zinc plated steel sleeves, and grease fittings for easy maintenance. Installation is quick and easy, taking approximately 30 minutes using OEM hardware in factory mounting points.

• Control Arms Built Using 1.625" x 0.120" Steel DOM Tubing
• Panhard Bar Built Using 1.250" x 0.095" Steel DOM Tubing
• High Quality Fluted Polyurethane grease-able Bushings
• CNC Machined Zinc Plated Steel Sleeves
• Durable Powder Coat Finish
• TIG Welded Construction
• Uses OEM Hardware

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UMI’s heavy duty control arms are direct replacements of the weak, factory stamped rear lower control arms. UMI’s control arms are constructed of 1-1/2” mild steel tubing with CNC machined ends and assembled with polyurethane bushings. These direct bolt-on replacements are designed to minimize wheel hop and improve cornering, while lowering track ETs and helping track consistency. Control arms come complete with polyurethane bushings, grease fittings, zinc-plated steel sleeves and finished in a gloss powder coat.

• - Includes polyurethane bushings, grease fittings, zinc-plated steel sleeves
• - Polyurethane bushings for improved performance
• - Finished in gloss powder coat for durability
• - Provides better track consistency
• - Made of 1-1/2" mild steel tubing
• - Minimizes wheel hop
• - Enhances cornering
• - CNC machined ends
• - Lowers track ETs
• - Easy to install

This Part Fits:

UMI’s heavy duty control arms are direct replacements of the weak, factory stamped rear lower control arms. UMI’s control arms are constructed of 1-1/2” mild steel tubing with CNC machined ends and assembled with polyurethane bushings. These direct bolt-on replacements are designed to minimize wheel hop and improve cornering, while lowering track ETs and helping track consistency. Control arms come complete with polyurethane bushings, grease fittings, zinc-plated steel sleeves and finished in a gloss powder coat.

• - Includes polyurethane bushings, grease fittings, zinc-plated steel sleeves
• - Polyurethane bushings for improved performance
• - Finished in gloss powder coat for durability
• - Provides better track consistency
• - Made of 1-1/2" mild steel tubing
• - Minimizes wheel hop
• - Enhances cornering
• - CNC machined ends
• - Lowers track ETs
• - Easy to install

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Replace the rubber factory rear end housing bushings with a polyurethane setup from UMI. Over time, rubber bushings dry rot, crack and harden, decreasing your ride quality and vehicle performance. The polyurethane bushing kit replaces the two upper rear end differential bushings located in the “ears” of the rear end. Polyurethane works excellent for street and drag racing applications. Note: Must reuse the existing outer metal shell.  Installation 2-4 hours.

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