Availability
QA1 Pro coilover systems are engineered from the ground up to offer unmatched performance over stock suspension setups. Pro coilover systems utilize adjustable and non-adjustable coilover shocks and springs designed specifically for replacing the factory shocks and springs. This combination offers ride height adjustment and variable position valving adjustment (where applicable) for performance not found in other kits. Choose QA1 Pro coilover systems for your next suspension upgrade.
( 343 )
$678.25
—
$964.95
QA1 GM 2.0 Street control arms provide increased positive caster compared to OE arms and are among the lightest available. These arms feature a lower unsprung weight and improved performance without sacrificing durability. Each arm includes a QA1 integrated ball joint design which is stronger than OEM and rebuildable for tunability, providing long-term reliable service. These arms are designed with billet cross shafts for reduced weight and durability for the long haul. Double-sheer lower mounts are coil-over ready for a clean installation. QA1 GM 2.0 Street control arms look incredible and use no unsightly additional adapters! Form meets function with these newly designed arms that look and perform great without requiring painstaking restoring like factory stamped steel control arms.
( 22 )
$635.95
—
$854.95
QA1 1988-98 C1500 front and rear coilover conversion systems are a great upgrade to your C1500 suspension. Each kit comes with QA1's proven adjustable coilover shocks—so you can change the valving to meet your specific needs—along with a variety of spring rate options. These shocks allow for ride height adjustability and are 100 percent dyno-tested and serialized. The QA1 C1500 front control arms and rear torque arms are manufactured from 12-gauge HSLA steel tubing for increased strength and are powdercoated for long lasting durability. Topped off with performance ball joints and low-friction, maintenance-free bushings. Complete with adjustable instant center, panhard bar, and pinion angle to allow you to adjust the system to your exact needs. This kit will add more stability and allows for optimum camber adjustment in a lowered truck. Easily bolt in this system--no welding or bed removal required. Everything needed is included, all the way down to the hardware.
Not Yet Reviewed
$5,597.95
—
$6,879.95
Want to improve the performance of your ride, without a major hassle? QA1 Stocker Star shocks could be your answer. They're lightweight, fully adjustable, and bolt right in. They rely on deflective-disc valving and have 18 levels of damping, which you can select at the twist of a knob—with the shocks in place on the vehicle. Stocker Stars have 5/8 in. hard-chromed centerless-ground piston rods, double-lip wiper seals, and one-piece, forged, machined-aluminum bodies that are bright-anodized for great looks and durability. Each shock is dyno-tested for consistency and comes with chrome or zinc plated mounting hardware. Order the model recommended for your vehicle application.
( 342 )
$179.95
—
$314.95
Here's an easy way to convert your stock rear suspension to a coilover suspension. You get everything you need with these QA1 Rear Pro coilover systems, from shocks to nuts and bolts, complete installation instructions, and even decals!
( 104 )
$729.95
—
$1,109.95
QA1 Pro Coil shocks and struts are designed to change over your OEM suspension to an adjustable coilover design. They include two high performance shocks or struts and all necessary mounting hardware. QA1 Pro Coil shocks and struts are available for street use in single or double-adjustable styles and also come in a full drag race version built only for the race track.
( 26 )
$235.08
—
$379.95
QA1 offers upper and lower rear trailing arms for Ford and GM applications in boxed, tubular, and heavy-duty adjustable options. All upper tubular and lower boxed trailing arms use polyurethane bushings on both ends, while upper adjustable and lower tubular trailing arms use a spherical ball or rod end assembly on the chassis end to eliminate bushing bind, allowing the suspension to move smoother for better control. They are powdercoated or zinc plated and anodized for a long-lasting finish. Keep your tires planted firmly on the ground for improved traction and a more predictable, better handling car with a set of QA1 rear trailing arms. Features may include: * Boxed trailing arms are constructed from 0.120 in. wall cold rolled steel tubing for maximum strength and flex elimination. * Tubular trailing arms are constructed from 1 1/4 in. diameter, 0.120 in. wall steel tubing which offers increased strength over other designs, but also have the added advantage of lighter weight. * Boxed and tubular styles feature fluted, greasable polyurethane bushings, which are superior to the stock rubber bushings. * Heavy-duty adjustable trailing arms allow easy rear suspension adjustments for optimum handling and traction. Simply loosen the jam nuts and adjust the pinion angle without removing the arms from the vehicle. They replace soft OE differential bushings with polyurethane differential bushings, and they use a spherical ball or rod end assembly with UHMW polyethylene bushings on the chassis end * Adjustable styles are available in aluminum and steel options
( 96 )
$249.95
—
$499.95
Designed for the pro-touring GM enthusiasts, QA1 GM 2.0 pro-touring control arms are a simple upgrade over original suspension or worn and outdated tubular control arms. The pro-touring arms are also for those wanting to improve their overall handling, ride quality, and vehicle stance. These arms will improve suspension geometry over the factory configuration and pave the way for planning additional upgrades. The high-strength, low alloy steel enables optimized thinner wall construction and results in overall lighter weight. The increased positive caster design improves straight line stability. Pro-touring arms also feature QA1's stronger, low maintenance, and rebuildable ball joints which feature integrated dust boots. Note: These control arms are not compatible with OE-type springs, a coilover system must be installed. QA1's arms will accept factory type sway bars and include upper and lower bump stops.
( 14 )
$739.95
—
$945.95
QA1 1988-98 C1500 level 3 front coilover conversion systems are a great upgrade to your C1500 front suspension. Each kit comes with QA1's proven double-adjustable Pro Coil coilover shocks—so you can change the valving to meet your specific needs—along with a variety of spring rate options. The shocks allow for wider wheel and tire combos, ride height adjustability, and are 100 percent dyno-tested and serialized. The QA1 C1500 upper and lower control arms are manufactured from 12-gauge HSLA steel tubing for increased strength and are powdercoated for long-lasting durability. The bolt-in upper control arm mount provides enhanced suspension geometry, which reduces anti-dive and ties in the upper shock mount. The kit will provide a total of 6 in. of drop when used with drop spindles, or 4 in. of drop with factory spindles. Performance ball joints and low-friction, maintenance-free bushings are standard. This easy bolt-in kit will add more stability and allows for optimum camber adjustment in a lowered truck. Everything you need is included, all the way down to the hardware; no welding is required.
( 4 )
$2,797.95
QA1 1988-98 C1500 level 2 front coilover conversion systems are a great upgrade to your C1500 front suspension. Each kit comes with QA1's proven single adjustable Pro Coil coilover shocks—so you can change the valving to meet your specific needs—along with a variety of spring rate options. The shocks allow for wider wheel and tire combos, ride height adjustability, and are 100 percent dyno-tested and serialized. The QA1 C1500 upper and lower control arms are manufactured from 12-gauge HSLA steel tubing for increased strength and are powdercoated for long-lasting durability. The kit will provide a total of 4 in. of drop when used with drop spindles, or 2 in. of drop with factory spindles. Performance ball joints and low-friction, maintenance-free bushings are standard. Level 2 easy bolt-on kits will add more stability and allow for optimum camber adjustment in a lowered truck. Everything you need is included, all the way down to the hardware; no welding required.
( 7 )
$2,219.95
Dial in your ideal ride quality with the independently adjustable compression and rebound valving of QA1 Proma Star double adjustable coilover systems. They offer the perfect balance of street-ability and performance and are an ideal choice if you plan to use your car on the road and occasionally take it to the track. With QA1 Proma Star double adjustable coilover systems you will improve overall handling, increase suspension tunability, and gain the ability to adjust ride height quickly and easily for a perfect stance and corner balance your car, maximizing performance. They are easy to install with basic hand tools in the factory mounting locations and does not require the use of a toe link relocation kit. Coilovers are available with multiple spring rate options to help you find the perfect option for your intended use. The medium springs are great for cars that will mostly be used on the road. The firm option is geared toward track-oriented cars, further reducing body roll under hard cornering, and providing a more planted feel.
( 3 )
$1,078.95
—
$1,767.95
QA1 sway bars afford improved handling and control by reducing body roll. They're manufactured from lightweight 4130 chromoly steel and 1045 cold-formed steel—with a gloss black powdercoat finish for maximum strength, endurance, and corrosion resistance. The QA1 sway bars are precision CNC-formed, ensuring proper mounting in the stock location for a true bolt-on installation. They also feature adjustable end links to customize roll stiffness to your personal specifications. These sway bars from QA1 include greaseable graphite polyurethane bushings, along with high-quality zinc plated hardware. Engineered and road-tested to give your ride the grip that it needs to hold the road, QA1 sway bars are available for fitment on many vehicle applications. Order them individually for the front or rear—or in a complete kit.
( 138 )
$249.95
—
$655.95
As part of the number one choice for custom suspension systems, QA1 Proma Star single adjustable coilover systems are available in several lengths, making them easy to fit in almost any situation. Both the double-adjustable versions and these single-adjustable models allow you to set your valving to fit your driving style, so you are ready to hit the road, nearest racetrack, or anywhere in between. Get that perfect stance with adjustable ride height when you order the QA1 Proma Star single adjustable coilover systems best suited for your application. Other product features include: * On-the-car adjustable valving makes it quick and easy to dial in your desired level of comfort and performance * Shocks feature a 2 in. body diameter and can be mounted in any orientation * Spring mounting hardware designed for coil springs with a 2 1/2 in. inside diameter * Alternative mounting options available to fit your custom chassis * 100-percent dyno tested and serialized * QA1 single-adjustable shocks are designed for performance street driving, autocross, and lower-powered drag racing (rear only) * All QA1 single-adjustable shocks feature simultaneous compression and rebound adjustment on one knob (18 positions)
( 2 )
$864.95
—
$1,552.95
Replace your heavy stock K-member with one of these tubular QA1 Mustang K-members and, in addition to the weight savings, you'll get better steering geometry, less bump steer, reduced dive under braking, and quicker straight-line performance. Ideal for street performance, autocross, pro touring or drag racing, they easily bolt onto factory components without any wheel or tire fitment changes. Features and benefits include: * All mounting points are digitally-indexed from new factory K-members * Made from high-quality, American-made, high-strength, low-alloy steel (HSLA) steel * Weighs only 25 lbs.--over 50 percent lighter than stock K-members * Increased header and oil pan clearance for easier maintenance and installation * Modular design for versatility--bolt-in engine mounts can easily be swapped for future engine changes * Improved geometry--maintains optimum anti-dive and minimizes bump steer with selectable rack height and optimal control arm positioning * Ideal for Mustangs with a lowered stance * Retain the factory wheel base Note: For best results, QA1 control arms are strongly recommended
( 31 )
$479.95
Are you looking for high performance aluminum shocks on a budget? QA1 Stocker Star NA shocks to the rescue! These premium stock mount, non-adjustable shocks are small body designs that bolt right up to your factory mounts. Stocker Star NA shocks feature a twin-tube design with centerless-ground, hard chrome plated piston rods inside durable, anodized, machined aluminum bodies--just like QA1 premium shocks, but at a more affordable price. These shocks have increased valving response, control, and consistency, plus double-lip seals with wipers to eliminate seal drag and stop dirt from entering. Unlike most replacement shocks, Stocker Star NA shocks can be serviced, revalved, and rebuilt. Get high performance and a professional look at a price that you can afford with QA1Stocker Star NA shocks.
( 85 )
$179.95
QA1 Pro coilover springs fit perfectly with QA1's front Pro Coil Shock Systems. These springs are available with flat or pigtail ends and in 10 or 11 in. free lengths. Made with the highest quality materials, QA1 springs are strong, consistent, and have a long life. Order the style, size, and spring rate options needed for your application. Additional details: * Chrome Silicon steel (CrS) construction for high strength, consistency, and long life * Cold wound, heat-treated, and shot peened to ensure consistency, accuracy, and durability * Silver powdercoated for excellent longevity * High Travel (HT) options have fewer coils and a smaller wire diameter; as a result, they're lighter and have increased travel due to the larger distance between the coils. They reduce unsprung weight and react faster, optimizing suspension performance * Springs are clearly marked with the free length of the spring and spring rate for quick and easy identification * All QA1 springs are lifetime guaranteed to remain within 2 percent of the original free height and rate under normal operating conditions * For Mustang struts or rear Pro Coils, see QA1's 2.5 in. I.D. springs
( 45 )
$104.95
QA1 bump steer kits are designed for vehicles that have been lowered and have unwanted toe changes and bump steer during suspension travel. They feature premium chromoly steel and heat-treated, self-sealing, and self-lubricating X-Series rod ends, as well as black anodized aluminum sleeves. QA1 bump steer kits install easily with the included specially designed spindle studs (with a washer and locknut) and an assortment of bump steer spacers to get the right amount of correction.
( 34 )
$204.20
—
$214.95
QA1 Ford Mustang control arms are an easy-to-install solution for increased strength and reduced front-end weight. Saving over 15 lbs. per set, these control arms are an ideal solution for your Mustang. Offered in two configurations, QA1 Ford Mustang control arms are optimized for your intended use. Choose the street or race-style arms designed for your Mustang. * Street: -- QA1 Street control arms are engineered for performance. Great on vehicles primarily used for cruising and the street. They use a factory replacement ball joint for serviceability and polyurethane bushings for a smooth ride and reduced suspension bind. * Race: -- QA1 Race control arms are designed for drag racing, pro-touring, and autocross applications. They're equipped with QA1's exclusive X-Series chromoly rod ends and low-friction ball joints, giving you a wide range of wheel alignment settings while reducing friction.
( 23 )
$479.95
—
$589.95
QA1 Proma Star externally adjustable coilover shocks and struts provide just the right combination of consistency, reaction, and durability for drag racing. They have special valving, which is designed to compensate for high shaft speed, while allowing for low shaft speed control. When combined with the 18 externally adjustable valve settings, they ensure an improved grip on the track from end to end. Other features include a bright-anodized aluminum body, PTFE-lined bearings or polyurethane bushings, a 5/8 in. centerless-ground chrome piston rod, and aerospace-caliber sealing materials.
( 177 )
$335.99
—
$589.95
QA1's high-quality caster/camber plates for race applications offer many features not found in other brands. For example, the bearing housing is TIG-welded for the utmost in strength and durability. These kits provide caster and camber changes for the ultimate in adjustability.
( 5 )
$319.95
Because there's a lot of stress on all the suspension components, especially the ball joints, yours should receive special attention. QA1 ball joint studs are available in multiple lengths for fitment with specific ball joints from QA1. These black oxide coated studs are designed for superior strength and minimal wear. QA1 components allow your suspension to operate smoothly throughout the entire range of travel.
( 3 )
$39.95
QA1 ultimate ball joints feature a patented adjustable design that's strong and extremely wear-resistant. They're available in bolt-in, press-in, and screw-in styles for most popular racing applications. Order the model recommended for your vehicle. Features include: * Ultimate low-friction operation * Infinite preload adjustment allows breakaway torque to be set as low as 0 ft.-lbs. * Completely smooth, bind-free operation * Most wear-resistant design available * Precision tolerance ball-to-race conformity results in even load distribution for unsurpassed wear resistance * Precision-ground 52100 bearing steel race ensures long life and ultra-smooth operation * Steel-reinforced, self-lubricating race * Designed to handle severe impact and high-load applications without sacrificing performance * On-the-car adjustability * Fully greasable, enhanced by self-lubricating components to ensure smooth operation * Various ball studs are available for easy geometry changes * Fine-tune your roll center
( 21 )
$95.95
—
$118.95
QA1 interchangeable engine mounts allow you to use the engine of your choice. They are designed to be used with specific QA1 offerings, like their F-100 front coilover conversion systems and Mustang K-members. All brackets are made from strong steel and given a durable black finish.
( 6 )
$113.95
QA1 GEN-F shocks are machined aluminum, externally adjustable shocks designed specifically for the F-body chassis. The valving adjustment is made with a single knob at the base of the shock (12 settings total), enabling you to adjust to changing track conditions or for ride comfort. GEN-F shocks are completely able to be rebuilt and revalved for a lifetime of service and customizing.
( 3 )
$274.95
Modal Header
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
