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QA1 Sway Bars

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.

4.59 out of 5 stars ( 139 )

$279.95

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$979.95

QA1 1963-72 C10 Coilover Conversion Systems

Upgrade your classic truck to a modern driving feel and performance with QA1's 1963-1972 C10 coilover conversion systems. The kits come with everything you need to convert your C10's front end to coilovers and a tubular crossmember with rack-and-pinion steering. These systems are a great way to overhaul your suspension in one go, giving you adjustable ride height to achieve the perfect stance with up to 8 in. of drop—all while dialing in the ideal ride quality and performance for your application while reducing weight 140 lbs. over stock. Order the QA1 1963-72 C10 coilover conversion system recommended for your year/make and model vehicle. Product features and details: * Powered rack-and-pinion offers quicker steering and a tighter feel. Plus, increase steering angle when fitting larger wheels and tires, and improve geometry for enhanced drivability * Increased Ground Clearance: The crossmember and control arms make your undercab rails the truck's lowest point—new upper shock mounts increase travel for a great ride and performance, even at low ride heights * Adjustable Shock Valving: Double-adjustable shocks offer independent rebound and compression tunability—great for trucks that will see track time or drivers who really want to dial in ride quality on the street * Easy, Bolt-In Installation: The crossmember comes powder coated and ready to install—no need to cut or weld your frame—it easily locates the steering rack, and you can choose mounts (sold separately) for common engines * Modular Engine Mounts: Choose from modular engine mounts (sold separately) that allow you to reuse your existing transmission mount and driveshaft (kits are available for small block Chevy, big block Chevy and LS applications—DIY mounts are also available if you want to customize the location of your engine * Front Sway Bar: The optional front sway bar (sold separately) adds even more cornering capabilities—it reduces body roll and keeps your tires planted to give you more grip in the turns Fitment Notes: * If you already have QA1's coil-over system, you can find retrofit kits to use your existing components * Total drop range depends on wheel/tire fitment * Will require you to trim inner fenders * Engine mounts are year-range specific to maintain OE bellhousing location * Optimized bump steer settings require at least 18 in. wheels -- 18 in. wheels can run up to 6 in. of backspacing -- 20 in. wheels can run up to 7 in. of backspacing * Requires use of C10 spindles * May require different headers and oil pan (Stock SBC and BBC pans fit) * Steering shaft is not included * May require new power steering hoses depending on fittings, pump, and engine placement

5.0 out of 5 stars ( 5 )

$4,450.95

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$5,775.95

QA1 1973-87 C10 Coilover Conversion Systems

Upgrade your square body Chevy C10's driving feel and performance while getting the perfect stance with QA1's 1973-1987 C10 coilover conversion systems. The kits come with everything you need to convert your C10's front end to coilovers and a tubular crossmember with rack-and-pinion steering. These coilover conversion systems are a great way to overhaul your suspension in one go, giving you adjustable ride height to achieve the perfect stance with up to 8 in. of drop—all while dialing in the ideal ride quality and performance for your application while also reducing weight 140 lbs. over stock. Order the QA1 1973-87 C10 coilover conversion system recommended for your year/make and model vehicle. Product features and details: * Powered rack-and-pinion offers quicker steering and a tighter feel. Plus, increase steering angle when fitting larger wheels and tires, and improve geometry for enhanced drivability * Increased Ground Clearance: The crossmember and control arms make your undercab rails the truck's lowest point—new upper shock mounts increase travel for a great ride and performance, even at low ride heights * Single or double-adjustable shock valving offers independent rebound and compression tunability—great for trucks that will see track time or drivers who really want to dial in ride quality on the street * Easy, Bolt-In Installation: The crossmember comes powder coated and ready to install—no need to cut or weld your frame—it easily locates the steering rack, and you can choose mounts (sold separately) for common engines * Modular Engine Mounts: Choose from modular engine mounts (sold separately) that allow you to reuse your existing transmission mount and driveshaft (kits are available for small block Chevy, big block Chevy and LS applications—DIY mounts are also available if you want to customize the location of your engine * Front Sway Bar: The optional front sway bar (sold separately) adds even more cornering capabilities—it reduces body roll and keeps your tires planted to give you more grip in the turns Fitment Notes: * If you already have QA1's coil-over system, you can find retrofit kits to use your existing components * Total drop range depends on wheel/tire fitment * Will require you to trim inner fenders * Engine mounts are year-range specific to maintain OE bellhousing location * Optimized bump steer settings require at least 18 in. wheels -- 18 in. wheels can run up to 6 in. of backspacing -- 20 in. wheels can run up to 7 in. of backspacing * Requires use of 1973-1987 C10 spindles * May require different headers and oil pan (Stock SBC and BBC pans fit) * Steering shaft is not included * May require new power steering hoses depending on fittings, pump, and engine placement

5.0 out of 5 stars ( 1 )

$4,450.95

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$5,775.95

QA1 Level 2 Big Wheel Kits

Build your project exactly how you want with QA1 Level 2 Big Wheel kits! Get the perfect look by easily adjusting your ride height with front and rear coilovers. Raise or lower your car 2 in. the front. Raise it up to 2 in. or lower it by up to 3 in. in the rear. QA1 Level 2 Big Wheel kits allow you to dial-in the exact style you want in minutes with the included spanner wrench. These complete bolt-on suspension kits are designed to fit up to 28 in. wheels on your vehicle and include everything needed to get your Box sitting right, while giving you a better ride and improved handling. Product features and benefits: * Double-adjustable coilovers give you the ability to individually tune your shock compression and rebound to get the perfect ride and get more grip off the line for drag racing * Adjustable upper and lower trailing arms allow your wheel and tire package to fit with adjustable trailing arms that center your rear axle in the wheel well to gain more clearance for up to 28 in. wheels * Tubular control arms are much lighter and stronger than stock and will upgrade front-end geometry for better drivability—and are designed specifically for big wheel cars with corrected suspension angles for large wheels and tires * Tubular sway bars help reduce body roll and improve stability with front and rear sway bars to reduce handling issues that come from big wheels and raised ride heights * Easy, bolt-in installation * Parts come powdercoated and ready-to-install with all necessary hardware to allow you to bolt up the kit right in your garage or work with your local shop * Works with original factory rear axle housings or Quick Performance 9 in. rear axle housings

5.0 out of 5 stars ( 2 )

$5,631.95

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$5,637.95

QA1 Four Link Conversion and Narrowed Ford 9 in. Axle Kits

QA1's 4-link conversion and narrowed Ford 9 in. axle kits are an all-in-one solution that gives you everything you need to get your First-Gen Camaro or Firebird project on the road—fast. QA1 paired their 4-link suspension kit with a custom narrowed 9 in. rear housing for enthusiasts seeking top-tier performance and hassle-free installation. Your time is valuable, so say goodbye to hunting for junkyard rear ends or struggling with endless measurements and mismatched components—every component in this package is tested by QA1 to fit the first time. These QA1 upgrade kits have been engineered to deliver the performance, ride quality, and adjustability you need to handle serious power and aggressive driving—without the hassle of having to outsource each part. Ultimate shock performance: Ditch your leaf springs for QA1 MOD Series coilovers, triangulated 4-link suspension and an all-new narrowed 9 in. rear end. QA1's MOD shocks are designed to provide the ultimate in tunability and performance. With their four-way adjustable valving, remote nitrogen canisters, and huge dampening forces, QA1 MOD shocks deliver in any driving scenario. QA1 4-link kits are fully engineered to provide ride height, ride quality and instant center adjustability. Whether you're after a lowered, aggressive look or need clearance for wider wheels and tires, QA1 systems deliver. Easy installation: QA1 is committed to delivering products that make upgrading your car as simple as possible, and their 4-link kits with 9 in. housing are designed for a bolt-on installation, eliminating the need for custom fabrication. Key Features: * Narrowed housing to accommodate wide wheel and tire packages in mini tubbed cars * Fabricated center section engineered for maximum strength and durability * Formed trailing arm brackets reduce flex under high loads, ensuring your suspension remains rigid * Heavy-duty 3 in. OD, 1/4 in. wall axle tubes provide the durability needed for high-performance applications * 31-spline 1541H alloy axles support up to 650 hp, with the housing handling up to 800 hp * Durable semi-gloss powder coat finish offers long-lasting protection and a clean, sleek look * Drain plug, fill plug, and Jack Pad come standard to make service a breeze * Includes T-bolts and housing studs for assembling axle shafts and installing third members * High-quality roller bearings for smooth operation and long-lasting reliability

Not Yet Reviewed

$4,435.95

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$5,525.95

QA1 Four Link Conversion and Standard Ford 9 in. Axle Kits

QA1's 4-link conversion and standard Ford 9 in. axle kits give you everything you need to get your 2nd Gen Camaro or Firebird project on the road—fast. QA1 paired their 4-link suspension kit with a custom 9 in. rear housing for enthusiasts seeking top-tier performance and hassle-free installation. Your time is valuable, so say goodbye to hunting for junkyard rear ends or struggling with endless measurements and mismatched components—every component in this package is tested by QA1 to fit the first time. Each kit is engineered to deliver the performance, ride quality, and adjustability you need to handle serious power and aggressive driving—without the hassle of having to source each part. Ultimate shock performance: Ditch your leaf springs for QA1 MOD Series coilovers, triangulated 4-link suspension and an all-new narrowed 9 in. rear end. QA1's MOD shocks are designed to provide the ultimate in tunability and performance. With their four-way adjustable valving, remote nitrogen canisters, and huge dampening forces, QA1 MOD shocks deliver in any driving scenario. QA1 4-link kits are fully engineered to provide ride height, ride quality and instant center adjustability. Whether you're after a lowered, aggressive look or need clearance for wider wheels and tires, QA1 systems deliver. Easy installation: QA1 is committed to delivering products that make upgrading your vehicle as simple as possible, and their 4-link kits with 9 in. housing are designed for a bolt-on installation, eliminating the need for custom fabrication. Performance housing features: * Fabricated center section engineered for maximum strength and durability * Formed trailing arm brackets reduce flex under high loads, ensuring your suspension remains rigid * Heavy-duty 3 in. OD, 1/4 in. wall axle tubes provide the durability needed for high-performance applications * 31-spline 1541H alloy axles support up to 650 hp, with the housing handling up to 800 hp * Durable semi-gloss powder coat finish offers long-lasting protection and a clean, sleek look * Drain plug, fill plug, and Jack Pad come standard to make service a breeze * Includes T-bolts and housing studs for assembling axle shafts and installing third members * High-quality roller bearings for smooth operation and long-lasting reliability

Not Yet Reviewed

$4,435.95

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$5,525.95

QA1 HD Pro Rear Drag 4-Link Systems

QA1 HD Pro rear drag 4-link kits are built to put down serious power! Streamlining the fabrication process, these systems deliver professional-grade results and performance in a convenient, easy-to-order kit. They are designed for the hardcore, discerning, do-it-yourself racer looking for a no-compromise solution to take their vehicle to the next level in performance and adjustability. Offered with or without QA1's MOD Series 4-way adjustable coilover shocks, or 7 in. travel, track-proven single or double adjustable coilover shocks, each kit contains high-quality, MIG-weldable components to ensure a safe and properly engineered design that can be easily adapted into many drag racing setups. A components kit is also offered without coilover shocks and lateral locating device. Find convenience, safety, and performance all in a QA1 HD Pro rear drag 4-link system. Select the kit best suited to your drag race suspension setup. Features, benefits, and contents: * Drag race-style 4-link design: -- Performance and adjustability -- Wide range of instant center tuning and on-car adjustability -- Components can be cut to length -- 40 in. or narrower frame rails * 1/4 in. thick plates * 1 1/4 in. diameter, 22 in. length trailing arm tubes * Grade 8 hardware * QA1 chromoly rod ends * 40 in. shock crossmember and mounting tabs * 40 in. diagonal link kit with mounting brackets (not in components kit)

Not Yet Reviewed

$567.95

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$2,695.95

QA1 Tunnel Mounted Torque Arms

If you've increased the power level of your 3rd Gen, damaged transmission tail housings can be a common and costly issue. QA1 has designed a solution with their Tunnel mounted torque arms and dedicated transmission crossmember to provide greater strength and peace of mind. This increases traction, reduces wheel hop, and reduces dive during braking. The torque arms are a direct-fit with several popular rear end housings. Additionally, QA1's Tunnel mounted torque arms feature pinion angle adjustability, allowing for precise tuning based on your vehicle's setup. The Tunnel mounted torque arms are available to fit OEM, Strange 12-bolts, and aftermarket 9 in. housings, as well as Strange S60 and Moser 12-bolt housings. Select the QA1 Tunnel mounted torque arms designed for your vehicle's application needs. Features and benefits: * Enhanced strength for high horsepower cars * Relocates mounts off the transmission * The torque arm has been rigorously tested to withstand up to 1,000 lbs.-ft. of torque, making it suitable for high-performance builds * The QA1 torque arm installs cleanly with a new transmission crossmember, fitting snugly in the tunnel without compromising ground clearance or exhaust clearance * It utilizes QA1 X-Series chromoly rod ends for mounting to the differential, ensuring strength * A polyurethane bushing at the front mount reduces noise and vibration while maintaining strength and durability * Pinion angle adjustability * Bolt-in design for easy installation

Not Yet Reviewed

$419.95

QA1 GM K-Members

QA1's tubular K-member for the 1982-1992 Chevrolet Camaro/Pontiac Firebird (F-body) is a significant front-end upgrade. Designed for reduced weight and increased clearance for headers and oil pans, QA1's K-members make a great upgrade for both street performance and track vehicles. QA1's engineers prioritized superior strength when designing these K-member components which reinforces the front-end unibody structure while optimizing weight savings. Unlike other K-members that lock you into a single setup, QA1 K-members offer unmatched versatility with their modular engine mounts (sold separately) that let you switch between engines and transmissions without needing a new K-member. No other K-member offers this level of adaptability, making QA1 the ultimate choice for a seamless build. The K-members offer the flexibility to be used with either coilover struts or QA1 spring sliders, depending on your performance goals. Coilover struts, like QA1's adjustable Proma Star Struts, can also provide a significant performance boost for your 3rd Gen Camaro or Firebird with the ability dial-in the perfect ride height. For those looking to achieve the perfect stance with greater negative camber, while accommodating wider wheels and tires, inboard spring sliders by QA1 are another great option. The inboard spring slider option also helps to maintain spring loads near the factory position on the QA1 K-member. Features and benefits: * Steel suspension subframe crossmember * High-strength design with powdercoat finish * The unique design of QA1's K-members allows the use of interchangeable engine mounts (sold separately) for easy engine swaps—choose from modular engine mounts (sold separately) that either allow you to reuse your existing small block engine and transmission combination or swap to a big block Chevy, or more modern LS and Gen V LT * Substantial weight savings—shedding 32 lbs. while increasing clearance and enhancing accessibility to the front of your car, this is an ideal upgrade! * Compatible with QA1' spring sliders or QA1's coilover struts (sold separately) * You can make your driveline swap even easier by using QA1's transmission crossmembers and torque arms (both sold separately) * Bolt-in installation—QA1's commitment to thoughtful product design is evident in their fully bolt-in kits, providing an easy installation process Fitment Notes: Must use QA1 lower control arms (sold separately). Not compatible with factory coil springs. Must use QA1 coilover struts or QA1 spring slider kit (both sold separately). Engine mounts sold separately.

Not Yet Reviewed

$734.95

QA1 Mopar Front Street Performance Coilover Conversion Systems

QA1 Mopar front street performance coilover conversion systems transform your classic Charger, Road Runner, or other classic B/E-body Mopar into a restomod that drives, corners, and launches like a modern machine. These Mopar systems feature great-looking powdercoated components that improve performance and save weight while making it easy to swap engines, including the Gen 3 Hemi. QA1 Mopar street performance systems are available with single or double adjustable shocks in kits offering 0 to 2 in. or 2 to 4 in. of drop. Features and benefits: * Coilovers help you achieve the perfect stance and ride quality * Single-adjustable shocks are recommended for cars used primarily on the street * Double-adjustable coilovers are recommended for consistent drag racing, autocross or road racing * Rack-and-pinion steering provides a modern feel and improved handling in any setting * Drastically improve geometry, enhancing driving feel and cornering capabilities * Designed for everyday driving, drag racing, and handling * Tubular design improves exhaust clearance while reducing weight * Works with multiple engine configurations

4.33 out of 5 stars ( 3 )

$5,363.95

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$6,890.95

QA1 Level 2 Full Vehicle Handling Suspension Kits

QA1's handling suspension kits provide a full-vehicle upgrade that fits your needs. Available in three different levels of performance, you can build your car in stages, using QA1's parts list as a road map to get to the level of performance you want and have peace of mind knowing you won't have compatibility issues. Greater control and improved cornering are key benefits of QA1 Level 2 handling suspension kits. They're designed to boost performance and include a more extensive assembly of components than Level 1 kits. They offer easy bolt-on installation and full compatibility with the OEM parts you attach them to. All QA1 handling suspension kits are available with or without shocks and struts—giving you the flexibility to obtain the shocks or struts and spring rates you desire. Select the kit designed for your vehicle.

5.0 out of 5 stars ( 10 )

$5,313.95

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$9,020.95

QA1 1965-79 F-100 Coilover Conversion Systems

QA1 1965-79 F-100 coilover conversion systems are suspension kits built with a purpose—just like your truck! With these all-new, engineered-from-scratch systems, you can stop using junkyard parts to modernize your pickup, and instead bolt in the handling and performance you've always wanted. The front systems are 3.75 in. narrower than a Crown Vic, providing ideal handling and allowing fitment of larger wheels and tires. They also save 150 lbs. of weight and provide 3 in. to 5 in. of drop with standard spindles and 5 in. to 7 in. with drop spindles. QA1 1965-79 F-100 coilover conversion systems are available in single and double adjustable styles with everything you need included, except engine mounts. Included in the systems: * Adjustable shocks * High-travel springs * Coil-over hardware * Upper and lower control arms * Upper and lower crossmembers * Rack and pinion steering * Stock or drop spindles * All required nuts, bolts, etc.

4.38 out of 5 stars ( 8 )

$4,162.95

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$4,732.95

QA1 1961-71 D100 Independent Front Suspensions

QA1 1961-71 D100 independent front suspensions update your classic 2WD Dodge truck with coilover shocks and rack-and-pinion steering. The IFS kits instantly transforming the old-school feel of leaf springs and a straight axle to greatly enhanced truck performance with late-model drivability and the perfect lowered stance. QA1 coilovers make it easy to achieve the ideal look while tuning ride characteristics to meet your unique needs. Choose from kits that offer 3 to 4 in. of drop or 5 to 6 in. of drop to lower the front of your truck while gaining much better geometry. You also have the choice of single or double-adjustable coilovers. Kits come complete with everything you need to bolt in the system. Contents and features of QA1 D100 IFS kits: * Front crossmember * Tubular control arms * Steering rack * Spindles * Ball joints * Inner/outer tie rods * All necessary installation hardware * The kits can be bolted in with simple hand tools without any cutting, welding, or the use of a lift, and can be completed without removing the inner fender aprons * Single-adjustable shocks are recommended for trucks that will be used primarily on the street * Double-adjustable coilovers are recommended for trucks that will consistently be used for drag racing, autocross, or road racing

Not Yet Reviewed

$4,176.95

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$4,470.95

QA1 Mopar Front Drag Coilover Conversion Systems

QA1 Mopar front drag coilover conversion systems transform your classic Charger, Road Runner, or other classic B/E-body Mopar into a restomod that drives, corners, and launches like a modern machine. These Mopar systems feature great-looking powdercoated components that improve performance and save weight while making it easy to swap engines, including the Gen 3 Hemi. Features and benefits: * Coilovers help you achieve the perfect stance and ride quality * Rack-and-pinion steering provides a modern feel and improved handling in any setting * Drastically improve geometry, enhancing driving feel and cornering capabilities * Designed for everyday driving, drag racing, and handling * Tubular design improves exhaust clearance while reducing weight * Works with multiple engine configurations * Add the optional sway bar (not included) to further enhance performance and cornering capabilities.

Not Yet Reviewed

$5,581.95

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$6,760.95

QA1 Level 3 Full Vehicle Handling Suspension Kits

QA1's handling suspension kits provide a full-vehicle upgrade that fits your needs. Available in three different levels of performance, you can build your car in stages, using QA1's parts list as a road map to get to the level of performance you want and have peace of mind knowing you won't have compatibility issues. Top performance is the desired goal of many automotive upgrades—precisely what QA1 Level 3 handling suspension kits deliver. Compared with the Level 1 and 2 packages, these heavy-duty assemblies offer additional control components, as well as stiffer springs to maximize your cornering ability and handling. QA1 Level 3 kits are available with or without shocks and struts—giving you the flexibility to obtain the shocks or struts and spring rates you want. Select the kit designed for your vehicle.

Not Yet Reviewed

$6,660.95

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$11,243.95

QA1 Level 2 Full Vehicle Drag Racing Suspension Kits

Looking for a better launch, straight-line stability, and consistent performance? Turn to QA1's drag racing suspension kits for a full-vehicle upgrade that fits your needs. Available in three different levels of performance, these drag racing kits offer easy, bolt-in installation (some welding may be needed) and seamlessly works with whatever OE component each piece attaches to. And with different levels, you can build your car in stages, using QA1's parts list as a road map to get to the level of performance you want and have peace of mind knowing you won't have compatibility issues. QA1 Level 2 drag racing kits are ideal for owners looking for serious performance gains at the track. They deliver everything needed in one shot, taking the guesswork out of the process, so you can skip the research and focus on preparing for your next race. Select the kit designed for your drag race car.

Not Yet Reviewed

$6,398.95

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$8,620.95

QA1 Level 1 Full Vehicle Handling Suspension Kits

Seeking improved stance, along with ride quality and handling? Turn to QA1's handling suspension kits for a full-vehicle upgrade that fits your needs. Available in three different levels of performance, these kits offer easy, bolt-in installation (some welding may be needed) and seamlessly work with whatever OE component each piece attaches to. And with different levels, you can build your car in stages, using QA1's parts list as a road map to get to the level of performance you want and have peace of mind knowing you won't have compatibility issues. QA1 Level 1 handling kits deliver everything needed in one shot, taking the guesswork out of the process. These full-vehicle upgrades are designed to boost performance while giving you steady, reliable comfort. All QA1 handling suspension kits are offered with or without shocks and struts—giving you the flexibility to obtain the shocks or struts and spring rates you need. Select the kit designed for your vehicle.

1.0 out of 5 stars ( 1 )

$2,697.95

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$3,436.95

QA1 Level 3 Full Vehicle Drag Racing Suspension Kits

QA1 Level 3 Drag Racing suspension kits furnish your vehicle with the ability for a better launch, straight-line stability, and consistent performance. These kits utilize high-quality parts engineered together as a system to take the guesswork out of choosing the right pieces to support your performance goals. Many feature QA1's MOD Series front drag suspension kit or MOD Series front or front and rear Pro Coil system matched with Drag Race control arms and additional components to equip your vehicle with race-winning performance. Choose the kit designed for your vehicle.

Not Yet Reviewed

$10,850.95

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