Instant Rebates | Summit Racing

Instant Rebate

QA1 Rear Pro Coilover Conversion Systems

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!

4.63 out of 5 stars ( 104 )

$719.96

—

$926.96

Instant Rebate

QA1 Pro Rear Parallel 4-Link Systems

QA1's Pro Rear Parallel 4-Link systems with panhard bar kits simplify the fabrication process for vehicles that lack aftermarket suspension support—and offer an easy solution that provides ride height adjustability and a simple installation process. These DIY kits produce professional-quality results and great looks in a convenient package. Designed for the DIY enthusiast, each kit contains high-quality, MIG-weldable components that ensure a safe and well-engineered design that'll give your favorite truck or hot rod the stance and ride quality it deserves. The systems are available in three models: * Basic, with no shocks or springs * Single-adjustable, with coilover shocks (150 lb. spring rate) * Double-adjustable, with coilover shocks (150 lb. spring rate) ADAPTABILITY: Kits include all necessary components and hardware for assembling and mounting the trailing arms, shock mounts, and panhard bar. The raw components can be cut to length and welded as needed, allowing for seamless adaptation to a wide range of applications. PACKAGING and SIMPLICITY: The parallel 4-link system, by design, packages easily into many applications, making it an ideal solution where space is limited. The parallel 4-link system is easy to tune, making it a great choice for DIY mechanics while still meeting the demands of high-end builds. Powdercoated trailing arms with forged bushing ends offer great looks, durability, and offer a smooth, compliant ride. TUNABILITY and RIDE HEIGHT ADJUSTMENT: Adjustable coilover brackets provide ride height adjustment so you can tune in the perfect stance for your ride. The included panhard bar and adjustable trailing arms ensure you can fine-tune your axle position and pinion angle for proper function and control. KIT CONTENTS: -- Powdercoated trailing arms with forged bushings and provide adjustment from 24 5/8 in. to 25 1/2 in. in length -- Trailing arm axle brackets for 3 in. axle tubes -- Panhard bar max length 37 in. -- 40 in. trailing arm crossmember -- 40 in. shock crossmember and mounting tabs -- All required hardware -- NOTE: Single- or double-adjustable models also include coilover shocks

Not Yet Reviewed

$1,039.46

—

$1,782.86

Instant Rebate

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

$511.16

—

$2,426.36

Instant Rebate

QA1 Rear MOD Series Pro Coilover Conversion Systems

QA1 MOD Series conversion systems enable you to fabricate your own custom-mount weld-in rear coilover suspension system in any non-leaf spring vehicle. The kits are available for different rear-end vehicle weight—in adjustable ranges from 1,050 to 1,700 lbs.—as well as for 3 in. or 3.25 in. axle diameters. Order the model designed to fit your application. Pro coil systems include: * (2) Coilover shocks * (2) Linear rate springs * 1.625 in. O.D. x .095 in. wall x 40 in. long weld-in tube * All mounting hardware

Not Yet Reviewed

$1,947.56

—

$1,965.56

Instant Rebate

QA1 GM 2.0 Pro-Touring Control Arms

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.

5.0 out of 5 stars ( 16 )

$665.96

—

$851.36

Instant Rebate

QA1 GM Street Control Arms

QA1's Street control arms use a factory replacement ball joint and polyurethane pivot bushings. These work great on vehicles used primarily for cruising and long distance events. Configured for QA1 Pro Coil Systems, these street control arms feature powdercoated tubular construction for increased strength and great looks. A bolt-in spring adapter is available separately to allow the control arms to be used with stock springs. All the upper arms feature an offset cross shaft letting you quickly and easily adjust camber.

4.69 out of 5 stars ( 13 )

$751.46

—

$998.96

Instant Rebate

QA1 Mustang K-Members

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

4.48 out of 5 stars ( 31 )

$431.96

—

$534.56

Instant Rebate

QA1 Diagonal Link Kits

QA1 diagonal link kits help streamline the fabrication process of building a drag race-style 4-link. Designed to be heavy-duty to handle the demands of high-performance racing, the kits offer high-quality, MIG-weldable components to ensure a safe, easy to install, and properly engineered product. QA1's diagonal link kits pair up great with their HD Pro rear 4-link systems, but can be easily adaptable into most drag race setups. Kit contents, features, and benefits: * 1 in. diameter x 40 in. length of tubing -- Can be cut to length to work in most setups -- 40 in. or narrower frame rails * Pre-bent and drilled mounting brackets -- Make installation into 1/2 in. trailing arm bolts a breeze * Grade 8 hardware * QA1 chromoly, high-misalignment rod ends -- Standard in strength and offer generous mounting flexibility

5.0 out of 5 stars ( 1 )

$116.96

Instant Rebate

Speedtech Performance USA Tubular Sway Bar Kits

Speedtech Performance USA offers tubular sway bar kits for a variety of classic car applications. They're available in different styles, such as: * For Factory Style Suspension: Larger, higher spring rate sway bars are among the easiest, most cost-effective ways to improve the cornering and handling performance of your Camaro or Firebird. Engineered specifically to fit the 1970-81 F-body GM subframe and leaf spring rear suspension, Speedtech sway bars utilize high-strength tubular DOM steel to maximize performance at up to half the weight of a solid bar. All bends are performed on computer-controlled tubing benders to provide consistent bends in a sway bar that fits right every time. Quality shows in the details, such as end treatments that taper smoothly from round to flat to eliminate stress risers, while ends are radiused for a clean appearance and better clearance. All sway bars come powdercoated gloss black and include all-new mounting hardware and bushings. * For Torque Arm Rear Suspensions: For most average Pro Touring Camaros seeing only occasional track days, the Torque Arm performs flawlessly even without a rear sway bar. For those who will hit the track more often and run either the Speedtech ExtReme front subframe or a fairly large sway bar on a Pro Touring or GM subframe, consider adding the Torque Arm rear sway bar kit to further enhance your car's handling. This bar is a frame-mounted, tubular type 7/8 in. bar that is 3-way adjustable for 138, 170, and 215 lb. spring rates—and is sized and shaped to clear the Speedtech torque arm assembly.

Not Yet Reviewed

$326.66

Instant Rebate

QA1 Ford Control Arms

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.

4.61 out of 5 stars ( 23 )

$431.96

—

$530.96

Instant Rebate

QA1 GM 2.0 Street Control Arms

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.

4.7 out of 5 stars ( 23 )

$769.46

Instant Rebate

QA1 GM Street Performance Control Arms

QA1 offers their street performance control arms as the lightest, strongest, and best-looking control arms available for your GM ride. Polyurethane bushings isolate road noise for a smooth ride while simultaneously reducing bind for improved handling. Long-term strength and durability come from QA1's maintenance-free ball joints (pre-installed in every arm.) QA1 GM street performance control arms will ride better, corner harder, and launch faster than anything you've experienced in the past!

Not Yet Reviewed

$572.36

—

$868.46