UMI Performance Suspension Parts

UMI Performance 1998-2002 F-Body LS1 Front End Kits (Street, Stage 2)

UMI Performance 1998-2002 F-Body LS1 Stage 2 front-end kits provide a solid foundation for your street car, making it ideal for drag strip use. They effectively combine weight reduction and strength with performance and comfort. The dual tube K-member is known for its durability, handling rough landings and street abuse while also protecting the oil pan. The lower arms feature poly bushings to absorb road noise, and the non-adjustable uppers guide the suspension on greaseable poly bushings. The A-arms are equipped with premium ball joints and help save an additional 8 lbs. of weight. UMI's K-member and A-arms are constructed from strong DOM tubing, precision-bent, CNC-notched, and welded in a jig for a robust base. Each kit is designed to work with factory motor mounts, polyurethane motor mounts, or UMI's solid billet aluminum motor mounts. They offer a direct bolt-in replacement, reducing front-end weight while maintaining street comfort and enhancing performance. UMI's Stage 2 kit includes: * Tubular dual tube K-member * Tubular street lower A-arms * Tubular street upper A-arms with polyurethane bushings * Grade 10.9 hardware with Ny-lock nuts Product features: * Heavy-duty dual tube construction K-member * Tubular upper and lower A-arms with greaseable polyurethane bushings * Premium upper and lower ball joints installed * 33 lbs. of front-end weight savings * Chromoly A-arms save an additional 1 1/2 lbs. * Compatible with factory steering rack * Includes new grade 10.9 A-arm mounting hardware * Direct bolt-in replacement, no welding required

Not Yet Reviewed

$1,789.99

UMI Performance 1998-2002 F-Body LS1 Front End Kits (Drag, Stage 1)

UMI Performance 1998-2002 F-Body LS1 Stage 1 front-end kits are the ideal starting point for reducing front-end weight and enhancing weight transfer in your 4th Gen vehicle. The dual tube K-member is renowned for its strength and durability, capable of withstanding wheel stand landings and street abuse while also decreasing weight and protecting the oil pan. The rod end lower A-arms minimize friction, allowing the car to respond quickly off the line, and reduce weight by 8 lbs. UMI's K-member and A-arms are made from robust DOM tubing, precision-bent, CNC-notched, and welded in a jig for a solid foundation. The included K-member is compatible with factory motor mounts, polyurethane motor mounts, or UMI's solid billet aluminum motor mounts (P/N 2323). Whether you want to decrease front-end weight, improve engine clearance, or enhance your street/strip car, the Stage 1 package is a great starting point. UMI's Stage 1 kit includes the following: * Tubular dual tube K-member * Tubular lower A-arms with race quality rod ends * Grade 10.9 hardware with Ny-lock nuts Product features: * Heavy-duty K-member with dual tube construction * Tubular lower A-arms with race quality rod ends * Premium ball joints installed * 33 lbs. of front-end weight savings * Chromoly A-arms save an additional 1 1/2 lbs. * Works with factory steering rack * Direct bolt in replacement, no welding * Includes new grade 10.9 A-arm mounting hardware

Not Yet Reviewed

$1,449.99

UMI Performance GM A-Body LSX Engine Mounts

Swapping an LS engine into a classic GM A-body is nothing new. UMI Performance LSX engine mounts allow the installation of an LS engine directly into your A-body. By retaining the proper angle of the engine, you keep your pinion angles/drivetrain operating smoothly. This is a good reason to get pre-engineered mounts for the swap instead of trying to make something work. These mounts place the engine in the factory location, but also give you the ability to relocate the engine rearward up to 3/4 in. or forward 1/4 in. UMI's LS engine mounts will bolt directly to your car's frame and the LS block without modifications. Their brackets have greasable polyurethane mounts to dampen vibration, but still provide a solid feel and eliminate the need for additional modification when using the LS1 oil pan. New premium mounting hardware is also included. Getting a quality set of mounts designed for your application will definitely make the swap a lot easier

4.39 out of 5 stars ( 18 )

$184.99

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$189.99

UMI Performance GM F-Body LSX Engine Mounts

UMI Performance GM F-Body LSX engine mounts allow the installation of LS power into your 3rd generation F-body when using a UMI K-member. Easily convert your UMI small block K-member into an LSX bolt-in solution with these bolt-on mounts. They're designed for factory LS1 rubber engine mounts, polyurethane mounts, and also work with UMI solid aluminum motor mounts. UMI Performance GM F-Body LSX engine mounts place the LS engine in the factory location with the ability to move the engine slightly rear-ward. LS mounts are CNC laser-cut from 3/16 in. thick steel with MIG-welded 1/4 in. thick standoffs, and high-grade mounting hardware is included.

3.33 out of 5 stars ( 3 )

$149.99

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$469.99

UMI Performance GM F-Body C5/C6 Brake Caliper Conversion Brackets

UMI Performance GM F-body C5/C6 brake conversion brackets are designed to mount 1997-2013 C5 or C6 front calipers and rotors to the 1993-2002 GM F-body spindle. These brackets are CNC laser cut from 3/8 in. thick mild steel. The CNC turned stand-offs are fully welded to the laser cut base for strength and a precision fit. The conversion brackets are supplied in a heavy duty black powder coat finish and each kit includes Grade 10.9 mounting hardware and complete detailed installation instructions. Benefits: * Larger rotors absorb and radiate more heat, the C5 rotor is 1 in. larger than the LS1 rotor and 2 in. larger than the LT1 rotor. The C6 rotor is 1/2 in. larger than C5 rotors. * Corvette rotors are directional, unlike the OEM LT1 and LS1 F-body rotors. Corvette rotors feature fins designed to advance air flow, allowing better cooling. * Many aftermarket brake pad and rotor options are available for all types of driving. Installation Requirements and Warnings: * C5 brakes require a minimum 17 in. wheel for clearance, while C6 brakes require 18 in. wheels. All 1996 and newer F-body 17 in. wheels will work with the C5 brakes. If you are running a different wheel set up please research fitment before purchasing. * Please note these are the adapter brackets only and to complete installation you must purchase rotors, calipers, abutment brackets, and pads separately. * To install these brackets both LT1 and LS1 spindles require modifications. This simple modification can be done while the spindles are on the car and require a small amount of cutting and grinding. LS1 models require less cutting than LT1 models. Instructions are included. The following wheels will not clear with this conversion kit, they may however clear with proper wheel spacers: * Enkei Win wheels 17 in. x 9.5 in. * 1993-94 SLP Firehawk wheels 17 in. x 9 in. * Borbet Type T wheels 17 in. x 9.5 in. * Forgeline RS reverse rim wheels * Torque Thrust II wheels * Konig Monsoon 17 in.

Not Yet Reviewed

$259.99

UMI Performance Bolt-In Viking Rear Coilover Kits

UMI Performance bolt-in Viking rear coilover kits allow full ride height, spring rate, and damping adjustability. The double shear upper mount is a direct bolt-in and holds a true 2.5 in. diameter coilover spring. The FEA designed lower bracket bolts in using the standard shock mounting hole as well as an additional reinforcement hole. Drilling one 3/8 in. hole per side is required to complete installation. The coilover kits utilize Viking shocks that are 19-way adjustable in both compression and rebound to ensure the perfect setting for every application. Viking shocks are fully rebuildable. The 2.5 in. diameter coilover springs are available in 14 in. long, 110 lb. spring rate for drag use; 14 in. long, 125 lb. spring rate for street use; and 12 in. long, 150 lb. spring rate for autocross and road race applications. The coilover kits have been tested with 1.5 in. diameter UMI trailing arms, as well as UMI's 22mm sway bar and 32mm drag anti-roll bar. Fitment with other brand sway bars and larger diameter control arms is not guaranteed. Please contact UMI for additional information regarding fitment. Key features: * Brackets manufactured entirely from 3/16 in. mild steel * Laser-cut brackets for consistency and a precise fit * TIG-welded for superior strength and clean looks * Powdercoated brackets for a long lasting finish * Viking double-adjustable shocks offer 19 compression and 19 rebound adjustments * 3 spring rate options, depending upon application * Bolt-in design * No welding required * Spacers included for use with control arm relocation brackets

4.6 out of 5 stars ( 10 )

$909.99

UMI Performance 1993-2002 GM F-Body Front Upper and Lower A-Arm Kits

Eliminate the flex found in your stock A-arms and add front-end rigidity with increased strength by installing UMI Performance 1993-2002 GM F-body front upper and lower A-arm kits. Designed to outperform your stock setup, these front upper and lower A-arm kits are made from strong DOM steel tubing, 3/16 in. thick CNC-machined ball joint mounts, and they are supplied with greasable polyurethane bushings. These rod ends feature a PTFE-lined, self-lubricating race design for quiet operation and allow free movement and travel to prevent bushing bind. The lower A-arms feature new ball joints and an adjustment if needed. UMI Performance 1993-2002 GM F-body front upper and lower A-arm kits will enhance your daily driver or race car.

4.55 out of 5 stars ( 11 )

$999.99

UMI Performance Lowering Springs

Lower your car properly with UMI Performance lowering springs. The front springs are wound from 5160 chrome silicon wire, while the rear springs are made from 9254 chrome silicon. The linear spring rates of each provide a firm but comfortable ride with exceptional handling. Suitable for Pro-Tour, Autocross, and general cruising, these lowering springs are finished with a tough black powdercoat and are available for the front, rear, or in kits with both. Order the parts designed for fitment with your vehicle's suspension. Not all springs are alike—the proof is UMI Performance lowering springs.

4.52 out of 5 stars ( 140 )

$149.99

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$299.99

UMI Performance Rear Non-Adjustable Lower Control Arms

UMI Performance non-adjustable lower control arms are designed to replace the factory setup. In doing so, they minimize wheel hop and improve cornering, while lowering track ETs and helping track consistency. UMI Performance non-adjustable lower control arms eliminate the flex and bushing deflection found in the factory lower control arms. Their tubular setup is built using 1.500 in. drawn-over mandrel tubing and features TIG-welded construction for the utmost in strength and durability. The rubber OEM bushings are replaced with greasable polyurethane bushings.

4.84 out of 5 stars ( 148 )

$99.99

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$349.99

UMI Performance Tubular K-Members

UMI Performance tubular K-members instantly remove 25 lbs. from the front of your vehicle, while maintaining strength for streetability and daily use. UMI Performance tubular K-members have been designed to handle everything from drag racing to daily driving and even autocross. Their dual tube center section adds increased strength over the competitors' designs, making them far superior and able to handle everyday stress and abuse. Additional front-end adjustment can also be achieved with these K-members. The lower A-arm slots feature a 1/2 in. adjustment built in and will work with the stock and any aftermarket A-arm setup. The front and rear A-arm slots also feature additional bracing to withstand hard side loads and extreme pressure. These tubular K-members also feature integrated motor mounts, eliminating the stock cast iron mounts for maximum weight savings. Additional features include: * Main center tube constructed from 1.500 in. x 0.120 in. seamless steel tubing * Additional cross braces use 1.250 in. x 0.120 in. seamless steel tubing * TIG and MIG-welded construction for superior strength * Front and rear A-arm mounts CNC-machined and fabricated from 0.188 in. thick steel * Rear A-arm mounts gusseted to withstand extreme side loads and pressure * Dual tube center section adds increased strength over any competitor's design * All mounting plates are CNC-machined to ensure hole-to-hole accuracy * Factory locator pins included for easy installation and exact fit * Completely fixture-welded to ensure factory fitment with no grinding or cutting

4.65 out of 5 stars ( 17 )

$729.99

UMI Performance Shock Tower Braces

UMI Performance shock tower braces make a great beginning for modifying your favorite ride. These braces positively connect your front right and left shock towers together for firmer handling and improved steering response. Constructed in the USA, UMI shock tower braces are available in DOM mild steel tubing with CNC-machined mounting plates. Or, if you're worried about adding front end weight, choose UMI's just as strong but lighter weight 4130 chromoly steel tubing braces. Both choices are given a brilliant and durable powdercoat finish in several colors. Beef up your chassis and get ready to hit the winding roads with UMI Performance shock tower braces.

4.88 out of 5 stars ( 52 )

$159.99

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$199.99

UMI Performance Bolt-In Viking Front Coilover Kits

UMI Performance bolt-in Viking front coilover kits offer a true 2 1/2 in. racing coilover setup for your ride. UMI's Viking Worrier shocks are double adjustable and easily change from street use to high rebound force for race use. By increasing the rebound force, you can eliminate pitch and roll while making the car stay flat during transitions. Viking Worrier shocks offer a wide range of compression dampening and can be dialed in from a comfortable cruise setting all the way up to full race settings. The kits are available with different spring rates; order the kit designed to fit your vehicle. Additional details: * Viking shocks use upper/lower bearings, eliminating polyurethane and rubber, for crisp response and great reliability * Adjustable compression * Adjustable high rebound Worrier AT valving * CNC laser-cut brackets with black powdercoat finish offer precision fit * Direct bolt-in with no welding, minor trimming required

4.67 out of 5 stars ( 6 )

$959.99

UMI Performance Rear Adjustable Lower Control Arms

UMI Performance single adjustable lower control arms are direct bolt-on replacements designed to minimize wheel hop and improve cornering, while lowering ETs. UMI Performance single adjustable lower control arms are constructed from a DOM mild steel tubing 1.500 in. o.d. x 0.120 in. wall and a 4130 chromoly threaded tube adapter. They are completely CNC-machined and fully TIG-welded for outstanding strength. UMI Performance single adjustable lower control arms feature reinforced spring perches and heavy-duty sway bar mounting points. Their high-quality, PTFE-lined spherical rod end allows for quiet, "bind-free" performance, making them great upgrades for both your track and autocross driven cars. The polyurethane bushings are designed to be bolted to the car chassis for quiet, comfortable operation. The control arms feature polyurethane bushings, zinc plated steel sleeves, and "on-car" greasable Zerk fittings. Additional features include: * QA1 3/4 in. hard chrome plated PTFE/KEVLAR® self-lubricating race rod end * CNC-machined 6061 aluminum step bushings with zinc plated steel sleeves * Powdercoated finish * Use OEM hardware

4.67 out of 5 stars ( 27 )

$219.99

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$349.99

UMI Performance Coil Spring Spacers

UMI Performance coil spring spacers are designed to allow you to achieve that perfect stance or prevent tire rub. They offer an easy way to fine tune the height of your vehicle with no cutting, welding, or drilling required. UMI Performance coil spring spacers are manufactured from zinc coated steel, are available in different thicknesses, and may be safely stacked to suit your specific vehicle application.

5.0 out of 5 stars ( 3 )

$9.99

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$39.99

UMI Performance LSX Motor Mount Bolts

UMI Performance LSX motor mount bolts are designed for use with aftermarket K-members and aftermarket LS adapter mounts. This pair of stainless steel Grade 10.9 hex-type fasteners come with the nylock nuts and washers to help securely mount an LS engine. Note: These bolts will not work on factory F-body K-members due to the bolt length.

5.0 out of 5 stars ( 1 )

$15.99

UMI Performance Torque Arm Bushings

UMI Performance torque arm bushings will allow your factory torque arm to mount to a UMI torque arm relocation kit. UMI Performance torque arm bushings are solid, one-piece polyurethane bushings for the ultimate in performance.

4.29 out of 5 stars ( 7 )

$21.99

UMI Performance Road Race Tubular K-Members

UMI Performance Road Race K-Members are designed for serious racers who expose their vehicles to more stress than any street cars will ever experience. Using an additional 1.000 in. of tubing, UMI Performance Road Race K-Members tie together crucial areas. They weigh in at 3 lbs., more than UMI's standard version, but still maintain a much-needed weight savings.

5.0 out of 5 stars ( 3 )

$929.99

UMI Performance Front Non-Adjustable Upper A-Arms

UMI Performance front non-adjustable upper A-arms are designed to add front-end rigidity, increase strength, and eliminate the flex found with stock A-arms. UMI Performance front non-adjustable upper A-arms are built using strong DOM steel tubing and 0.188 in. thick CNC-machined ball joint mounts and are supplied with greasable polyurethane bushings. These upper A-arms also feature a -3 degree improved ball joint angle for lowered vehicles. Additional features include: * 1.250 in. x 0.120 in. mild steel tubing * Adjustment for cast and camber * Brilliant durable powdercoated finish * Use OEM hardware

5.0 out of 5 stars ( 1 )

$329.99

UMI Performance Rear Double Adjustable Lower Control Arms

UMI Performance double adjustable lower control arms feature 100 percent TIG-welded fabrication using drawn-over mandrel tubing. UMI Performance double adjustable lower control arms also have spherical bearing rod ends, which offer "bind-free" operation by letting the suspension articulate correctly when high handling is a concern. These control arms also work great as solid bushing drag race control arms with easy, built-in adjustment. Quick and easy on-car adjustments can be made, if needed, with a simple turn of the wrench. When you are looking for maximum performance from your vehicle, you can't go wrong with this setup. Additional features include: * 1.250 in. x 0.120 in. steel or chromoly tubing * 4140 chromoly threaded tube adapters * 3/4 in. hard chrome plated, PTFE/KEVLAR® self-lubricating race rod ends * CNC-machined 6061 aluminum step bushings * On-car adjustability using right and left hand threads * Durable powdercoated finish

4.69 out of 5 stars ( 13 )

$259.99

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$399.99

UMI Performance Panhard Bar Lowering Brackets

UMI Performance panhard bar lowering brackets are designed for use with factory axles (may fit Strange rear-ends without modifications). They are designed to lower the driver side mounting point and will work in conjunction with UMI, as well as some other brands of panhard bar relocation kits. In those applications, they prevent panhard bar interference on lowered vehicles. UMI Performance lowering brackets are laser-cut and jig-built for accuracy, and then powdercoated for added durability. The kits include high-grade hardware.

5.0 out of 5 stars ( 2 )

$119.99

UMI Performance 1993-2002 GM F-Body Road Race Front Lower A-Arm Kits

UMI Performance 1993-2002 GM F-body road race front lower A-arms kits will provide a rock-solid foundation for your road race, autocross, or corner carving 4th Gen. The front lower A-arms fully gusseted box tubing construction, while appearing robust, affords a five pound weight savings per set over factory lower A-arms. The tube adapters for mounting rod ends are crafted from 4140 CrMo steel to enhance thread durability and guarantee years of trouble-free use. These A-arms have double shear sway bar mount tabs with end link set and are designed to work with factory K-members, UMI K-members, and most aftermarket K-members. Product features: * Construction 0.120 in. wall mild steel box tubing * Available in durable red or black powdercoat finishes * 1/2 in. diameter x 1 1/4 in. width racing coilover mount * 5 lbs. lighter than factory A-arms * Double shear sway bar mount with end link set included * Pedestal mount fits DeCarbon, Koni, Bilstein and aftermarket GM T-bars * Nominal 2 degree caster increase potential * Double gusset design for flex-free operation * TIG-welded 4140 CrMo threaded tube adapters * Premium ball joints installed * Race quality high misalignment rod end on vertical mount * CNC machined ball joint cups, tubing radiuses and mounting plates * Lower A-arms use OEM hardware or UMI hardware kit that includes Grade 10.9 bolts, washers, and lock nuts

1.0 out of 5 stars ( 1 )

$749.99

UMI Performance Front Adjustable Upper A-Arms

UMI Performance front adjustable upper A-arms were designed to outperform the stock setup. Whether you use them at the race track or as added improvements to your daily driver, they've been tested and improved to handle both applications. UMI Performance front adjustable upper A-arms are designed to add front-end rigidity, improved handling and strength, and to eliminate the flex found with stock A-arms. UMI Performance A-arms are built using strong DOM steel tubing and 0.188 in. CNC-machined ball joint mounts and are supplied with XM Endura series rod ends. These A-arms are supplied with high-quality spherical bearing rod ends. These rod ends replace the stock rubber bushings found in the OEM arms. Additional features include: * 1.250 in. x 0.120 in. mild steel tubing * TIG-welded 4130 chromoly threaded tube adapters * 3/4 in. hard chrome plated PTFE/KEVLAR® self-lubricating race rod ends * CNC-machined 0.188 in. ball joint mounts * Adjustment for cast and camber * -3 degree improved ball joint angle for lowered vehicles * Durable powdercoated finish * Use OEM hardware

4.63 out of 5 stars ( 8 )

$459.99

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$519.99

UMI Performance 1993-2002 GM F-Body Adjustable Lower Front A-Arms

For a strong, streetable setup without the weight of stock, add UMI Performance adjustable lower front A-arms and lose 8 lbs. on the front of your 1993-2002 GM F-body. What you gain are added strength and increased performance. These adjustable A-arms are built strong using DOM steel tubing, 3/16 in. thick CNC-machined shock mounts, new ball joints, high-quality chromoly spherical PTFE-lined rod ends, and greasable polyurethane bushings.Or the chromoly version uses 1.250" x 0.095" 4130 chromoly tubing, maintaining strength and reducing product weight by an additional 2 lbs, 10 lb total reduction. They're finished in your choice of durable red or black powdercoating. Whatever your application, race car or daily driver, UMI Performance 1993-2002 GM F-body adjustable lower front A-arms can handle your setup and lighten your load.

4.5 out of 5 stars ( 2 )

$269.99

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$699.99

UMI Performance 1993-2002 GM F-Body Road Race Front Upper/Lower A-Arm Kits

UMI Performance 1993-2002 GM F-Body Road Race front upper/lower A-arm kits come with boxed lower and adjustable upper A-arms, providing a rock-solid foundation for your autocross, road race, or corner carving 4th Gen. The lower A-arms feature fully gusseted box tubing construction, and while appearing heavy-duty, afford a 5 lb. weight savings per set over factory lower A-arms. They have factory GM pedestal location and are compatible with factory, Koni, and other T-bar, stock mount shocks. Upper arms feature caster and camber adjustment with premium rod ends. Laser-cut ball joint pads feature improved ball joint angle and increased caster (up to additional 2 degrees--varies by chassis) for lowered cars and come assembled with premium ball joints. UMI's GM F-Body Road Race A-arm kits offer the most travel and clearance of any A-arm on the market and is a must for lowered vehicles. Features and benefits: * 0.120 in. wall mild steel box tubing * Double shear sway bar mount with end link set * Double gusset design for flex-free operation * Race-quality high-misalignment rod end on vertical mount * PTFE-lined, high-load capacity race rod ends equal less suspension friction * Uses balance of OEM hardware or use a new UMI hardware kit * Premium ball joints installed * Available with a durable red or black powdercoat * Kit designed to work with the factory K-member, UMI K-members, and virtually all stock mounting point aftermarket K-members

5.0 out of 5 stars ( 1 )

$1,209.99