Fits select 1978-1992 GM vehicles including Buick Regal, Chevrolet Camaro, El Camino, Malibu, Monte Carlo, Oldsmobile Cutlass, and Pontiac Firebird, Grand Prix, and LeMans.

When installing aftermarket suspension components, reusing fatigued or corroded factory hardware can compromise the safety and performance of your vehicle. The UMI Performance Complete Rear Control Arm Bolt Upgrade Kit (MPN 3002) provides a comprehensive hardware solution for securing both the upper and lower rear control arms. Each bolt is manufactured from 10.9 high-grade steel, providing tensile strength equivalent to American Grade 8 hardware to handle the increased loads of performance driving.

• Includes (8) 12mm Grade 10.9 high-tensile steel bolts
• Includes (8) 12mm Nylon insert lock nuts and matching washers
• Bright zinc plating for superior corrosion resistance and durability
• Full hardware set for both upper and lower rear control arms
• Direct replacement for worn OE hardware on G-Body and F-Body platforms

Fits select 1978-2002 Buick Regal, Chevrolet Camaro, El Camino, Malibu, Monte Carlo, Oldsmobile Cutlass, and Pontiac Firebird, Grand Prix, and LeMans.

When installing aftermarket suspension components, reusing old, corroded factory hardware can compromise the integrity of your setup. The UMI Performance Rear Control Arm Bolt Upgrade Kit (MPN 3001) provides a complete set of high-strength hardware designed to replace worn OE fasteners during the installation of upper or lower rear control arms. Each component is finished in bright zinc plating for superior corrosion resistance and long-term durability in harsh undercar environments.

• Replaces factory hardware for either upper or lower rear control arms
• (4) 12mm 10.9 High-grade bolts (Metric equivalent to American Grade 8)
• (4) 12mm Nylon lock nuts
• (4) Flat washers
• Bright zinc-plated finish for corrosion protection
• Direct fit for GM G-Body and F-Body rear suspension applications

Fits select 1965-1988 GM A-Body and G-Body vehicles, including Buick GS, Regal, and Skylark; Chevrolet Chevelle, El Camino, Malibu, and Monte Carlo; GMC Caballero; Oldsmobile 442 and Cutlass; and Pontiac Grand Prix, GTO, and LeMans.

UMI Performance high-durometer polyurethane bushings are designed to replace factory rubber bushings that have become soft, cracked, or dry-rotted over decades of use. These bushings specifically replace the two upper control arm differential bushings that stay attached to the rear end housing "ears." By upgrading from rubber to polyurethane, you reduce unwanted axle housing rotation and deflection, restoring precise handling and improved traction for both street and track applications.

This kit is manufactured in the USA and includes polyurethane washers designed to prevent the bushings from "walking" side-to-side during hard cornering or acceleration. These are a direct replacement for the OE components and provide a significantly more durable solution than standard rubber replacements.

• Replaces factory rear end housing "ear" bushings
• High-durometer polyurethane construction
• Prevents bushing walk with included washers
• Improves suspension geometry and response
• Made in the USA
• Manufacturer Part Number: 3000-R

Kit Includes: (2) Polyurethane bushings and (2) Polyurethane washers.

Fits select 1965-1997 Buick, Chevrolet, GMC, Oldsmobile, and Pontiac models.

UMI Performance 3000-B polyurethane bushings are designed to replace the compliant factory rubber rear end housing bushings. Over time, original equipment rubber is susceptible to dry rot, cracking, and hardening due to environmental exposure and mechanical stress, which compromises suspension geometry and ride quality. These high-durometer polyurethane replacements restore precision to your rear suspension by securing the upper control arm mounting points on the differential housing.

Specifically engineered for the "ears" of the rear end housing, this kit includes two bushings and two polyurethane washers. The included washers are critical for preventing the bushings from walking side-to-side during lateral loading, ensuring consistent axle centering whether on the street or the track. These are a direct-fit upgrade for vehicles retaining factory-style mounting points.

• Replaces factory upper control arm rear end differential bushings
• High-durometer polyurethane construction for increased durability and performance
• Includes two (2) bushings and two (2) polyurethane washers to prevent lateral walking
• Compatible with factory mounting points on rear end housing "ears"
• Made in the USA
• Manufacturer Part Number: 3000-B

Fits 1970-1981 Chevrolet Camaro and Pontiac Firebird models.

Over 40 years of exposure to moisture and road debris can compromise the structural integrity of a factory subframe, often leading to rusted-out or wallowed body mount holes. The UMI Performance 2662 front subframe repair kit provides a precision-engineered solution to restore your frame's mounting surfaces to like-new condition. This 8-piece kit is designed to be welded into place, ensuring a sturdy surface and properly sized holes for correct body alignment and mount security.

• Manufactured from 1/8-inch thick laser-cut steel for maximum durability
• Restores all front subframe body mount locations to factory specifications
• Supplied in bare metal finish to facilitate immediate welding
• Requires cutting and welding for proper installation
• Proudly designed and manufactured in Philipsburg, PA-USA
• Manufacturer Part Number: 2662

This kit is compatible with all 1970-1981 GM F-Body models, including Chevrolet Camaro (Base, Z28, SS, RS, LT, Berlinetta, Sport) and Pontiac Firebird (Base, Formula, Esprit, Trans Am).

Fits select 1970-1981 Chevrolet Camaro and Pontiac Firebird models (SBC, BBC, and LS engines).

UMI Performance front lowering springs are engineered to improve the handling dynamics and stance of the second-generation F-Body. Wound from premium 5160 CrSi wire, these springs feature a linear 600 lb/in rate that is significantly stiffer than factory equipment. This increased rate reduces body roll and lowers the center of gravity, making these springs an excellent choice for Auto-X, Pro-Touring, and high-performance street applications.

The ride height is designed for a target 1-inch drop on standard Small Block Chevy (SBC) and LS-powered vehicles. For full-weight Big Block Chevy (BBC) applications, these springs provide approximately 1.25 inches of lowering. These springs are finished in a durable black powder coat for long-lasting protection and professional aesthetics.

• Spring Rate: 600 lb/in Linear
• Material: 5160 CrSi premium spring wire
• Finish: Black powder coat
• Target Drop: 1.00" (SBC/LS) or 1.25" (BBC)
• Country of Manufacture: USA
• Manufacturer Part Number: 2647F

Fits 1967-1981 Chevrolet Camaro and Pontiac Firebird models.

The UMI Performance 2625 polyurethane leaf spring shackle kit is designed as a heavy-duty replacement for worn factory hardware in street and performance applications. These shackles are laser-cut for precise fitment and provide a rigid foundation for the rear suspension, working seamlessly with original leaf spring locations or UMI P/N 2620 rear leaf springs.

To improve handling consistency and reduce deflection, this kit utilizes high-quality polyurethane bushings for both the leaf spring and chassis mounts. The assembly is secured with Grade 8 hardware to ensure maximum durability under load. This kit is a direct bolt-on solution for F-body owners looking to restore suspension geometry and improve rear axle stability.

• Precision laser-cut steel shackles
• High-durometer polyurethane bushings for leaf and chassis sides
• Includes all necessary Grade 8 mounting hardware
• Compatible with stock location leaf springs and UMI 2620 springs
• Made in the USA
• Manufacturer Part Number: 2625

Fits select 1967-1981 Chevrolet Camaro, Pontiac Firebird, and 1969-1974 Chevrolet Nova.

The UMI Performance 2620 Rear Leaf Spring Set is a high-performance suspension solution engineered to lower the center of gravity while improving handling response. Manufactured from premium US Steel, these springs utilize a multi-leaf construction to provide a consistent 2-inch to 2.5-inch drop below stock ride height. Designed as a direct bolt-in replacement, they install into factory mounting points without the need for modifications.

To ensure ride comfort and quiet operation, the front eyelets come equipped with pre-installed rubber bushings. The rear eyelets are delivered bare, allowing for the re-use of factory bushings or an upgrade to high-performance alternatives, such as UMI’s 2625 polyurethane or 2626 Delrin bushing and shackle kits.

• Manufacturer Part Number: 2620
• Lowering Range: 2.0 to 2.5 inches below stock height
• Material: High-quality US Steel construction
• Spring Type: Multi-leaf design
• Front Bushing: Pre-installed rubber eyelet bushing
• Compatibility: Fits GM F-Body and X-Body platforms
• Installation: Direct bolt-on to factory locations

Fits 2008-2009 Pontiac G8 and 2010-2014 Chevrolet Camaro (LS, LT, SS, Z/28, ZL1).

Upgrade your vehicle's handling and power delivery with the UMI Performance Rear Suspension Kit. This kit replaces factory-stamped steel components with heavy-duty trailing arms and toe rods designed to maintain precise caster and camber settings under load. By reducing flex, this kit improves traction, eliminates wheel hop, and significantly increases rear-end stability during hard launches and cornering.

• Includes rear trailing arms and rear toe rod arms
• Fabricated from 1” x 2” rectangular tubing for maximum rigidity
• CNC machined mounting plates and bushing holders
• Assembled with low-deflection, greaseable, and fluted polyurethane bushings
• Durable powder coat finish for long-lasting corrosion resistance
• Direct bolt-on installation using OEM hardware (approx. 2 hours)
• Made in the USA
• Manufacturer Part Number: 251520-R

Fits 2008-2014 Chevrolet Camaro and Pontiac G8 models.

The UMI Performance Rear Suspension Kit replaces weak factory stamped-steel components with heavy-duty boxed tubing to significantly improve rear-end stability. This kit includes both rear trailing arms and rear toe rods, providing the rigidity required to maintain consistent caster and camber settings during hard acceleration and cornering. By eliminating component flex, these arms help eliminate wheel hop and improve overall traction.

Designed as a direct bolt-in replacement, this kit (MPN 251520-B) utilizes your OEM hardware for an installation that typically takes less than two hours with basic hand tools. Each component features CNC-machined mounting plates and bushing holders for precise alignment and fitment.

• Fabricated from 1-inch x 2-inch rectangular steel tubing
• Includes low-deflection, greaseable, and fluted polyurethane bushings
• CNC-machined mounting plates and bushing holders
• Durable powder coat finish for corrosion resistance
• Direct bolt-on design; uses factory mounting points and hardware
• Made in the USA
• Manufacturer Part Number: 251520-B

Fits 1982-1992 Chevrolet Camaro and Pontiac Firebird models (GM F-Body).

Reducing front-end mass is one of the most effective ways to improve weight distribution and vehicle response. The UMI Performance tubular K-member (P/N 2401-R) is a direct bolt-in replacement that sheds 20 lbs compared to the factory unit, helping your existing horsepower work more efficiently on the street, drag strip, or autocross course.

Engineered for strength and durability, this K-member is fabricated from CNC-machined 3/16-inch thick mild steel mounting pads joined by a robust dual-tube lower section. The design maintains factory geometry while providing significantly more clearance for aftermarket exhaust systems and headers. For maximum versatility, the modular design features removable spring pockets, allowing you to run standard coil springs and struts today or easily convert to a coil-over setup in the future.

• Direct bolt-in replacement for 1982-1992 GM F-Body platforms
• Reduces front-end weight by 20 lbs compared to the OEM K-member
• Fabricated from high-strength 3/16-inch mild steel with dual-tube construction
• CNC-machined mounting pads accept factory clamshells and engine mounts
• Boxed mounting points for compatible factory and aftermarket suspension
• Provides increased clearance for large-diameter long-tube headers
• Durable powder-coated finish for corrosion resistance
• Manufactured in Philipsburg, PA - USA
• Manufacturer Part Number: 2401-R

Fits 1993-2002 Chevrolet Camaro and Pontiac Firebird (Base, RS, Z28, SS, Formula, Trans Am).

UMI Performance LSX poly engine mounts (MPN 2329) bridge the gap between soft factory GM rubber and rigid, track-oriented solid engine-side mounts. These units are specifically designed for enthusiasts who require a high-performance mounting solution that effectively manages engine torque and movement without the extreme noise, vibration, and harshness (NVH) of a solid metal mount.

• Direct-fit engine-side mounts for the 1993-2002 F-Body chassis
• Polyurethane bushings provide increased stiffness over OEM rubber for better throttle response
• Ideal for LSX-swapped vehicles and high-horsepower street/strip builds
• Maintains daily-driver comfort while securing the powertrain for performance driving
• Manufacturer Part Number: 2329

Fits 1998-2002 Chevrolet Camaro and Pontiac Firebird (LS1).

Reduce front-end weight and improve engine bay clearance with the UMI Performance tubular k-member (MPN 2320-R). This direct bolt-in replacement swaps out the heavy factory unit for a high-strength dual-tube assembly, instantly shedding 25 lbs from the nose of your GM F-Body. Fabricated from USA steel, it is engineered to withstand the rigors of street driving, drag racing, and autocross while providing significantly more room for large-diameter headers and custom exhaust routing.

This k-member maintains factory mounting geometry while offering enhanced alignment adjustment through its boxed control arm mounting points. The 1/4" thick laser-cut mounting stands are designed to accept factory motor mounts, ensuring a straightforward installation without the need for chassis modification.

• Reduces front-end weight by 25 lbs (up to 33 lbs total savings with tubular lower a-arms)
• Direct bolt-in replacement for 1998-2002 GM F-Body platforms
• Fabricated from USA steel with an industry-exclusive dual-tube lower section
• 1/4" thick laser-cut mounting stands compatible with OE-style motor mounts
• Boxed a-arm mounting points provide additional alignment adjustment over factory
• Increases clearance for aftermarket headers and tubular suspension setups
• Manufacturer Part Number: 2320-R

Fits 1993-2002 Chevrolet Camaro and Pontiac Firebird models.

UMI Performance tubular a-arms provide a rigid foundation for your 4th Gen GM F-Body front suspension. This kit is engineered to increase chassis rigidity and steering precision while delivering an 8lb weight reduction compared to heavy factory stamped steel components. The non-adjustable street design combines performance-oriented geometry with polyurethane bushings for a quiet, bind-free ride that is suitable for daily driving and performance applications.

• Replaces restrictive factory arms with 1-1/4-inch DOM tubular steel sections
• Precision bent and CNC notched for maximum structural integrity
• Features a 4130 CrMo tube adapter on the lower arm for rod-end durability
• Includes two-piece heavy-duty sleeves for bind-free pivot movement
• Upper arms utilize greaseable polyurethane bushings for easy maintenance
• Lower arms feature a 1/4-inch thick steel shock mount and premium ball joints installed
• Bolt-on installation compatible with factory or aftermarket k-members and OE spindles
• Manufacturer Part Number: 230511-B
• Made in the USA (Philipsburg, PA)

Fits 1993-2002 Chevrolet Camaro and Pontiac Firebird models.

Ensure your front suspension is secured with professional-grade components using the UMI Performance Upper and Lower A-Arm Hardware Kit (MPN 2303). During a suspension rebuild or when installing aftermarket control arms, factory hardware is often seized, corroded, or fatigued. This complete kit replaces the aging OE fasteners to ensure proper torque retention and structural integrity for your 4th Gen F-Body front end.

• Direct replacement for worn or damaged factory mounting hardware.
• Compatible with both factory and UMI Performance tubular control arms.
• Includes all necessary fasteners for both the upper and lower front A-arms.
• Durable finish designed to withstand road debris and environmental exposure.
• Manufacturer Part Number: 2303

Vehicle Fitment

Fits 1982-1992 Chevrolet Camaro and Pontiac Firebird (All Models).

Simplify your TH350 automatic transmission swap with the UMI Performance Torque Arm Relocation Kit. This heavy-duty transmission crossmember features an integrated torque arm mount, allowing you to install the TH350 while moving the torque arm load off the transmission tailshaft. This design protects the transmission housing from stress-related failure and provides multiple mounting points for instant center adjustment, allowing you to fine-tune your suspension geometry for better launch and traction.

Constructed for maximum durability, the 2230-R is built from DOM mild steel tubing and 0.188-inch mild steel mounting plates. The torque arm mount itself is machined from 0.250-inch thick mild steel and includes a new clam shell for a secure, professional fit. This 100% bolt-in solution requires no drilling, cutting, or welding, and is designed to tuck tight against the chassis to preserve factory ground clearance.

• Compatibility: Works with factory-style torque arms and most aftermarket replacements.
• Construction: Heavy-duty DOM mild steel tubing with 0.188" mounting plates.
• Adjustability: Integrated mount features multiple holes for instant center adjustment.
• Installation: Direct bolt-in design using existing factory mounting points; no welding or drilling required.
• Hardware Included: Includes all necessary high-grade hardware and a new torque arm clam shell.
• MPN: 2230-R

Fits 1998-2002 Chevrolet Camaro and Pontiac Firebird models (Base, Z28, SS, Formula, and Trans Am) equipped with manual transmissions.

The UMI Performance 2207-R torque arm relocation kit is engineered to move the front mounting point of the torque arm from the transmission tail shaft to a dedicated crossmember. While the factory design is sufficient for daily driving, it is prone to failure under hard launches and high-performance use, often resulting in a cracked transmission housing. This kit replaces your factory transmission crossmember with a heavy-duty unit featuring an integrated torque arm mount.

Constructed for maximum rigidity, the assembly is fabricated from rectangular mild steel tubing and 0.188-inch mild steel mounting plates. The torque arm mount itself is CNC-machined from 0.250-inch thick mild steel and includes a new clam shell for a secure fit. This setup is compatible with factory torque arms as well as most stock-style aftermarket units.

• Replaces OE transmission crossmember with a high-strength relocation unit
• Protects transmission tail shaft from stress and potential cracking
• Fabricated from 0.188" and 0.250" thick mild steel
• Compatible with factory and aftermarket stock-style torque arms
• Includes all necessary Grade 8 installation hardware
• Manufacturer Part Number: 2207-R

Fits select 1982-2002 Chevrolet Camaro and Pontiac Firebird models. Eliminate the flex and wheel hop common with factory stamped-steel components by upgrading to the UMI Performance adjustable transmission-mounted torque arm. Engineered to increase traction and reduce 60-foot times, this tubular torque arm provides the rigidity needed to transfer power efficiently to the ground.

Constructed for high-stress applications, the rear mount features 0.375-inch thick CNC-machined mild steel that is fully MIG welded. For precise driveline tuning, this arm allows for on-car pinion angle adjustments via a 4140 heat-treated adjuster and heavy-duty 3/4-inch QA1 rod ends. This unit is a direct bolt-on replacement for the factory arm, utilizing existing mounting points with no drilling or welding required. It includes a low-deflection Energy Suspension polyurethane front bushing to replace the soft factory rubber for improved response.

• Manufacturer Part Number: 2205-R
• Construction: Tubular mild steel with 0.375" thick CNC-machined rear mount
• Adjustability: On-car adjustable pinion angle with 4140 heat-treated adjuster
• Hardware: 3/4" QA1 rod ends and Energy Suspension front bushing
• Compatibility: Fits GM 10-bolt, Moser and Strange 12-bolt, and most 9" rear-end housings
• Installation: Direct bolt-on to factory clamshell and mounting holes

Fits all 1982-2002 Chevrolet Camaro and Pontiac Firebird models. This UMI Performance 22mm (7/8") lightweight tubular rear sway bar is engineered to significantly reduce body roll and understeer, providing a more balanced suspension for improved cornering performance.

Constructed from one-piece CNC-bent high carbon steel, this bar offers superior strength over standard multi-piece designs. It provides a meaningful rigidity upgrade over the factory 19mm (3/4") bar while maintaining a direct bolt-on installation using factory mounting points. The kit comes complete with heavy-duty end links and greaseable polyurethane bushings featuring zinc-plated clamshells for long-term reliability and quiet operation.

• Replaces factory 19mm bar with a more rigid 22mm (7/8") tubular design
• Manufactured from high carbon steel for maximum durability
• CNC bent as a single piece to ensure precise fitment and strength
• Greaseable sway bar bushings with zinc-plated mounting clamshells included
• Includes heavy-duty end links for a complete installation
• Durable powder-coated finish protects against corrosion and road debris
• Manufacturer Part Number: 2113-R
• Manufactured in the USA

Fits all 1993-2002 Chevrolet Camaro and Pontiac Firebird models, including Z28, SS, Formula, and Trans Am.

The UMI Performance tubular sway bar kit is engineered to significantly reduce body roll and understeer, providing a more balanced suspension for high-performance cornering. This kit replaces the factory 30mm or 32mm front bars with a more rigid 35mm tubular front bar and includes a matching 22mm tubular rear bar. Both components are manufactured from CNC-bent, high-carbon steel in a one-piece design to ensure maximum structural integrity under heavy lateral loads.

• 35mm tubular front sway bar and 22mm tubular rear sway bar
• Reduces body roll and improves steering response
• CNC-bent one-piece high carbon steel construction
• Includes heavy-duty front and rear end links
• Greaseable polyurethane bushings with zinc-plated hardware
• Durable bright red powder-coated finish
• Made in the USA
• Manufacturer Part Number: 211213-R

Fits select 1964-1992 Buick, Chevrolet, Oldsmobile, and Pontiac A-Body and F-Body vehicles including Chevelle, Camaro, Firebird, and Cutlass.

Eliminate the frustration of factory clamp-style tie rod adjusters with this heavy-duty upgrade from UMI Performance. Designed for precision steering alignment, these adjusters replace flimsy OE stamped steel clamps with a solid, high-strength solution that provides 100% thread engagement for increased safety and improved steering response. The solid hex design allows for a secure wrench grip, making toe-in adjustments fast and accurate.

Each unit is CNC machined from solid mild steel hex bar stock, featuring integrated left and right-hand threads to allow for easy on-car adjustments without disconnecting the tie rod ends. Finished in a durable black powder coat for long-term corrosion resistance, these adjusters are a direct bolt-on replacement for factory hardware and are compatible with OE tie rod ends.

• CNC machined from solid mild steel hex for maximum rigidity
• Left and right-hand threads allow for easy on-car adjustments
• Durable black powder coat finish protects against road debris and corrosion
• Direct replacement for Moog and Falcon part number ES2032S
• Compatible with factory tie rod ends with no modifications required
• Manufacturer Part Number: 2103

Fits select 1982-2002 Chevrolet Camaro and Pontiac Firebird models (F-Body platform).

Improve the stance and handling of your 3rd or 4th Gen F-Body with UMI Performance rear lowering springs. These springs are engineered to provide a consistent 1.5-inch drop while increasing the spring rate to 200 lb/in. This linear rate provides a firm, controlled ride that significantly reduces the "floating" sensation and body roll common with aged factory springs, making them an ideal choice for Pro-Touring, autocross, or spirited street driving.

Manufactured in the USA from premium 9254 Chrome Silicon (CrSi) wire, these springs are designed to resist sagging and maintain their height over time. For optimal performance, they are designed to work in conjunction with high-quality dampers such as Koni, Bilstein, or equivalent standard-mount shocks. This kit includes the rear springs only.

• Manufacturer Part Number: 2061R
• Rear Lowering Amount: Approximately 1.5 inches
• Rear Spring Rate: 200 lb/in (Linear)
• Material: High-tensile 9254 Chrome Silicon wire
• Compatible with Koni, Bilstein, and factory-style dampers
• Designed and manufactured in the USA

Fits 1993-2002 Chevrolet Camaro and Pontiac Firebird models (Base, Z28, SS, RS, Formula, Trans Am, and Indianapolis 500 Pace Car).

UMI Performance front lowering springs are engineered to improve the stance and handling of the 4th Gen GM F-Body. These springs provide a 1.25-inch front drop to lower the center of gravity while increasing the spring rate to a linear 600 lb/in. This configuration significantly reduces body roll and the common "floating" sensation found in factory suspensions, delivering a crisp, performance-oriented feel without sacrificing cruising comfort.

Manufactured in the USA from premium 5160 Chrome Silicon (CrSi) wire, these springs are designed for long-term consistency and resistance to sagging. They are fully compatible with factory-style dampers as well as popular performance options like Koni and Bilstein.

• Front Lowering: Approximately 1.25 inches
• Spring Rate: 600 lb/in (Linear)
• Material: High-tensile 5160 CrSi wire
• Reduces body roll and front-end floating for enhanced stability
• Compatible with Koni, Bilstein, or standard mount dampers
• Designed and manufactured in the USA
• Manufacturer Part Number: 2061F

Fits 1993-2002 Chevrolet Camaro and Pontiac Firebird models.

This UMI Performance lowering spring kit is engineered to transform the handling dynamics of the 4th Gen GM F-Body. By dropping the front 1.25 inches and the rear 1.5 inches, this kit levels the vehicle's stance while significantly increasing spring rates to eliminate the floating sensation and excessive body roll common with factory setups. Designed in collaboration with a top spring cup engineer, these springs provide a crisp, firm ride suitable for Pro-Touring, autocross, and spirited daily driving.

The front springs are wound from 5160 CrSi wire with a 600 lb/in rate, while the rears utilize 9254 CrSi wire for a 200 lb/in linear rate. This specific calibration provides superior cornering stability without sacrificing long-distance cruising comfort. These springs are fully compatible with factory-style dampers, including popular performance upgrades from Bilstein and Koni.

• Drop Height: 1.25" Front / 1.5" Rear (Designed to level vehicle rake)
• Front Spring Rate: 600 lb/in (5160 CrSi wire)
• Rear Spring Rate: 200 lb/in linear (9254 CrSi wire)
• Compatibility: Works with OEM-style dampers, Koni, and Bilstein
• Applications: Street cruising, Autocross, and Pro-Touring
• Origin: Designed and manufactured in the USA
• Manufacturer Part Number: 2061

Fits 1982-2002 Chevrolet Camaro and Pontiac Firebird.

UMI Performance rear rubber bump stops are designed to replace worn, cracked, or missing factory units. These components are critical for protecting your suspension system, providing a cushioned limit for rear suspension travel to prevent premature shock absorber failure during bottom-out conditions.

These units bolt directly into the factory mounting holes for a secure fit. Please note that installation requires minor trimming of the mounting flange on the vehicle for proper clearance. They are sold as a pair to completely refresh the rear axle bump stops on both the driver and passenger sides.

• Replaces damaged or dry-rotted OE rubber bump stops
• Protects rear shocks from internal damage during full compression
• Direct bolt-on installation using existing mounting points
• Minor trimming of the vehicle mounting flange required
• Includes one pair of rear bump stops
• Manufacturer Part Number: 2056

Fits 1982-1992 Chevrolet Camaro and Pontiac Firebird models. These heavy-duty caster and camber plates (MPN: 2040-B) provide the alignment adjustability required for high-performance street and track applications. Unlike factory rubber strut mounts that flex under load, these plates utilize a chromoly, Teflon-lined spherical bearing to eliminate deflection and maintain precise suspension geometry.

Constructed from TIG-welded 1/4" steel for maximum rigidity, these mounts are designed to withstand the rigors of racing. The Teflon-lined race ensures the spherical bearing remains self-lubricated and quiet during operation. Additionally, UMI has engineered these plates with increased height to provide necessary extra strut travel, specifically benefiting vehicles with lowered ride heights.

• TIG-welded 1/4" steel construction for maximum durability
• Chromoly Teflon-lined spherical bearings for maintenance-free, quiet operation
• Replaces restrictive, deflection-prone factory rubber strut mounts
• Increased housing height provides additional travel for lowered vehicles
• Expanded adjustment range on both the mounting plate and bearing housing
• Manufacturer Part Number: 2040-B

Fits all 1982-2002 Chevrolet Camaro and Pontiac Firebird models. This UMI Performance on-car adjustable panhard bar replaces the factory stamped steel unit to provide the strength and adjustability required for performance driving. It is a critical upgrade for centering the rear axle after installing lowering springs or when fitting larger wheel and tire combinations.

Constructed from heavy-duty 1.250-inch x .095-inch DOM steel tubing, this panhard bar is precision TIG welded for maximum structural integrity. The double adjuster features both left and right-hand threads, allowing for precise axle alignment while the bar remains installed on the vehicle. High-durometer greaseable polyurethane bushings are utilized at both ends to eliminate deflection and improve lateral stability without compromising ride quality.

• Fits 1982-2002 GM F-Body (Camaro and Firebird)
• 1.250" x .095" DOM steel tubing with TIG welded seams
• CNC machined 4140 heat-treated chrome-moly adjuster and tube adapter
• On-car adjustable design for easy centering of the rear end
• Greaseable polyurethane bushings with included grease fittings
• Durable powder coat finish for corrosion resistance
• Bolts directly to factory mounting points using OEM hardware
• Estimated 20-minute installation time
• Manufacturer Part Number: 2029-R

Fits select 1982-2002 Chevrolet Camaro and Pontiac Firebird models.

The UMI Performance Panhard Bar Relocation Kit is designed to replace the upper panhard rod support while relocating the lower panhard bar. This modification provides the necessary clearance to run a true dual exhaust system up to 3 inches in diameter over the passenger-side axle, a common clearance bottleneck on modified GM F-Body platforms.

Constructed for high-stress use, this kit features a new heavy-duty upper panhard bar support and precision laser-cut mounting brackets. It installs using the included high-grade hardware and maintains full compatibility with both factory panhard bars and all aftermarket alternatives. Proudly made in the USA, this kit ensures structural integrity while accommodating maximum exhaust flow.

• Relocates panhard bar to clear up to 3" true dual exhaust
• Heavy-duty upper panhard rod support replaces OE component
• Precision laser-cut brackets for exact fitment
• Works with factory and all aftermarket panhard bars
• Includes all necessary high-grade installation hardware
• Made in the USA
• Manufacturer Part Number: 2024-R