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Make every trip down the road one to remember with innovative, high-performance suspension kits and components from Speedtech Performance USA! Summit Racing carries...
Make every trip down the road one to remember with innovative, high-performance suspension kits and components from Speedtech Performance USA! Summit Racing carries a large selection of Speedtech suspension handling packages, along with parts like adjustable crossmembers, tubular upper control arms, motor mounts, performance spindles, coilover shock mounts, sway bars, and more. Get better handling capabilities from your car by ordering your Speedtech Performance parts today from Summit Racing!
Make every trip down the road one to remember with innovative, high-performance suspension kits and components from Speedtech Performance USA! Summit Racing carries a large selection of Speedtech suspension handling packages, along with parts like adjustable crossmembers, tubular upper control arms, motor mounts, performance spindles, coilover shock mounts, sway bars, and more. Get better handling capabilities from your car by ordering your Speedtech Performance parts today from Summit Racing!
Speedtech Performance USA frame brace kits prevent the sloppy, unpredictable feel of a weak body frame. You can increase rigidity by linking these braces to the strong structural undersides of your chassis. The braces are constructed from 1.5 in. DOM steel tubing that's computer designed, machined, and CNC-bent for consistent fitment. Speedtech Performance brace kits offer the reinforcement your race chassis demands.
( 10 )
$899.00
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$1,399.00
Speedtech Performance USA billet body mounts solve those problems you may be having with the original body mounts on your car. Worn rubber body mounts enhance body roll and give handling a sloppy feel. If you're replacing your suspension components, these body mounts with their solid aluminum construction are ideal. They're CAD-designed and CNC-machined in-house to exact tolerances from T6061-T6 billet aluminum and then anodized black for maximum durability. Speedtech Performance USA billet body mounts also include all Grade 8 hardware needed for installation.
Not Yet Reviewed
$229.00
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$299.00
Speedtech Road Assault suspension packages offer Pro Touring with a twist. You ask, "What about body roll control?" These kits are the perfect choice for those of you who haven't yet dialed-in your sway bar. Speedtech took their Pro Touring kit and added their custom, lightweight computer-bent tubular sway bar to tie everything together and make your project exciting! The bars are powdercoated black and include polyurethane bushings. With a Speedtech Road Assault suspension package, you'll experience better geometry, more tunability, and ride height adjustability—plus the ability to control the roll! Order the model recommended for your vehicle.
( 1 )
$2,527.00
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$2,547.00
Stamped steel factory lower control arm assemblies do a great job of keeping the car off the ground. Outside of that, they don't do much for your car's performance. Speedtech Performance USA tubular lower control arms are designed to meet and exceed the needs of your performance automobile. Their tubular construction dramatically increases strength in a lighter weight design, and the included Delrin bushings offer strength and longevity without the flex of rubber or squeak of polyurethane. Swivel link sway bar mounts allow for articulation without bind; while urethane bump stops, heavy-duty ball joints and Grade 8 hardware complete the package, helping boost your car to a greater the performance level. These control arms are constructed from CNC mandrel-bent 1.50 in. diameter, .156 in. wall DOM tubing. All components are laser-cut and CNC-machined for exact tolerances, welded together, and then powdercoated gloss black.
( 2 )
$650.00
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$795.00
Looking for the ultimate set of performance spindles? Speedtech Performance AFX Performance spindles are here to get the job done! GM musclecars are known for having poor geometry from the factory. They rode relatively smooth and did well in straight line drag race situations, but high-speed cornering was less of a consideration in their designs. With today's technology, correcting these issues with control arms helps, but is only part of the equation. Speedtech and ATS have taken an entirely new approach to improving the less-than-optimal factory suspensions of the A, F, X, G and B body platforms by scratch-designing the focal point of the steering and suspension geometry: the front spindles. They will drop your ride height 1 in. for a more aggressive stance and lower center of gravity. Relocated steering arm mounting points are custom-designed for each individual vehicle to improve Ackerman and bring bump-steer numbers down to nearly zero. The spindles feature a Corvette ZR1 sealed, maintenance-free hub; it's heavy-duty, and the large bearing pack offers a stronger load capacity--able to handle the abuse of street and track driving. Speedtech Performance AFX Performance spindles and the ZR1 hub combination do not alter the factory track width or bolt pattern, allowing standard wheel fitment. Brake mounting is based on the C5/C6 Corvette and accepts factory Corvette brakes or packages from multiple manufacturers, including Baer, Wilwood, and others.
( 1 )
$1,399.00
Replacing upper control arms is one of the quickest ways to enhance the handling performance of your vehicle. Speedtech Performance USA tubular upper control arms are designed with improved geometry and Delrin bushings to help your car navigate the curves and corners. They're lighter, so the unsprung weight aids in acceleration. Heavy-duty ball joints and hardware are included to ensure long life under extreme conditions. The control arms are CAD-designed and constructed from CNC mandrel-bent 1.25 in. diameter and .120 in. wall DOM tubing. All components are laser-cut and CNC-machined for exact tolerances, TIG-welded, and then powdercoated gloss black. Speedtech tubular upper control arms come assembled complete with 304 stainless steel cross shafts, greaseable Acetron GP Delrin- type bushings, performance ball joints (including forged housings), full spherical pins and CV-style dust boots, urethane bump stops, and Grade 8 mounting hardware.
( 1 )
$650.00
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$795.00
Speedtech Performance USA tubular control arm packages provide a pair or lower and upper arms for your vehicle. Each arm is CAD designed and constructed from CNC mandrel-bent DOM tubing. All plate components are laser-cut and CNC-formed for exact tolerances, TIG-welded to the tubing, and then the assemblies are powdercoated gloss black. Speedtech tubular upper arms are assembled with strong and corrosion-free 304 stainless steel cross shafts, featuring a special offset machining process that allows two different base camber settings during alignment. Performance ball joints featuring forged housings, full spherical pins and CV-style dust boots are then installed and custom free-moving spherical bearing-mount sway bar end links wrap up the lower arms. Select the control arm package designed for your vehicle. Both upper and lowers receive: * Non-wearing greasable Delrin® bushings * Urethane bump stops * Grade 8 hardware Construction: * Upper arms are 1.25 in. diameter .120 wall tubing * Lower arms are 1.50 in. diameter .156 wall tubing
Not Yet Reviewed
$1,279.99
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$1,399.00
Speedtech Performance USA offers Pro Touring suspension packages for the ultimate road and track suspension setup. The kit components are direct replacement for your old and worn-out control arms and greatly improve suspension geometry. The control arms are stronger than the factory control arms and provide 4-degrees additional built-in positive caster, which improves your vehicle's handling ability. The QA1 double adjustable coil-over shocks provide the ability for fine tuning the vehicle's ride height, as well as bounce and rebound rates. The Speedtech Pro Touring suspension kits are the best choice for the true performance minded that want their car to handle superbly yet still be an enjoyable to drive. Order the suspension kit designed to fit your application needs. Additional features and benefits: * All parts are a direct bolt-in, no frame modification necessary * Speedtech tubular control arms offer corrected geometry, performance components, and have less unsprung weight * Standard QA1 double adjustable shock system provides ease of installation with coilover style ride height control * Coilover shocks allow for ride height adjustment * Simple external double dial design allows individual compression/ rebound adjustability
( 1 )
$2,178.00
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$2,338.00
Speedtech Performance USA coilover conversion kits offer a better way to control ride height and suspension feel. These bolt-in kits use specially designed brackets along with your choice of QA1 double adjustable or RideTech single adjustable coilover shocks to provide on-the-fly adjustment for the ultimate in rear suspension tunability. The RideTech shocks are good for the average street driven, occasional autocross, and Pro Touring cars. The QA1 shocks are for those who seek a little more track time.
Not Yet Reviewed
$1,105.00
Wouldn't it be great to have a little extra edge when turning into a hard corner? Speedtech Performance USA Ackermann kits lengthen the steering linkage assembly and increase turn-in steering angle on your inside tire. Although they don't affect straight line driving, the steer kits can help pull you through the corners faster, increasing corner speeds and reducing your lap times. Made from strong billet aluminum, these components are built to withstand the abuse of auto racing. Increase your ride's handling ability with a Speedtech Performance USA Ackermann and bump steer kit. Notes: * Some kits are adjustable and include rod ends * Some kits include heim joints; others are for use with factory tie rods * Select the kit recommended for your vehicle application.
Not Yet Reviewed
$449.00
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$499.00
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
$349.00
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$399.00
With the way Pro Touring cars are driven, your suspension is not the only system on your car that needs to be updated with heavy-duty parts. Speedtech Performance USA motor mounts are designed to help keep your engine saddled in place when you are tossing the car through corners while getting on and off the throttle. Compared to rubber mounts, their polyurethane construction makes them stronger and more resistant to the abuse seen in pro touring driving conditions.
( 5 )
$99.90
The key to adapting clutch hydraulics to earlier muscle cars is using Speedtech Performance USA clutch master cylinder brackets. Don't be fooled by companies using a similar bracket with incorrect dimensions. These brackets are CNC laser-cut directly from the GM blueprints and include the proper heim joint end with stainless spacer. The brackets are made from durable steel and then black powdercoated for protection. Order the model recommended for fitment on your vehicle.
( 5 )
$85.00
Upgrade your front suspension with the Speedtech Performance USA ExtReme subframe featuring forged spindles. These packages are designed to handle all driving conditions with ease—ideal for daily driving, autocross, and track days. The box welded construction and tabbed through frame gusseting provide added torsional rigidity, while the fully adjustable wheel alignment and corrected Ackerman for better grip during cornering facilitate a customizable driving experience. The kit includes custom designed upper and lower control arms, a durable Sweet Mfg. dual power rack and pinion steering, JRI Speedtech Performance custom valved single adjustable coilover shocks, and a splined front sway bar with spring rate options. The exclusive ExtReme forged spindles offer optimized geometry and improved KPI/SAI angles, providing increased tire grip and a more precise driving experience. Order the front suspension package recommended for your vehicle. ExtReme Front Subframe Includes: * Full ExtReme subframe * Custom designed upper and lower control arms with high clearance to accommodate wide wheels * Durable Sweet Mfg. dual power rack and pinion steering * JRI Speedtech Performance custom valved single adjustable coil over shocks, spring rates of your choice included * Tuned, adjustable, splined front sway bar with spring rate options for street, pro-touring/auto cross and road course * Exclusive ExtReme forged spindles with C7 hubs and maintenance free sealed bearing * Fully adjustable transmission crossmember that will accommodate all engine and transmission combinations ExtReme Front Subframe Features and Benefits: * Boxed construction welded with tabbed through frame and crossmembers for added torsion rigidity * Speedtech Performance chassis and subframes come exclusively with forged 7075 aluminum ExtReme spindles * 78 percent motion ratio for faster shock response and more precise control * Increased shock length providing more suspension travel * Virtually zero bump steer, .005" over the full travel of the system * 30 +/- 3 degree of steering angle * Exclusive system provides optimum Ackerman for up to 20 percent more inside tire grip when cornering * Industry exclusive optimized roll center for low, mid and high travel * 3-piece chromoly tubular splined sway bar standard, optional spring rates * Excellent system for street, autocross and track days * Ride heights to meet your vision for styling the car exactly the way you want it * Accommodates greater than 315/30/18 tire with full steering ExtReme Forged Spindle Features: * Forged from 7075 aircraft-grade aluminum * Optimized geometry unmatched in any other Corvette style spindle * Significantly improved KPI/SAI angle * Requires less caster to achieve maximum tire contact patch * Significantly reduced scrub radius * Billet steering arm provides increased Ackerman angle * Achieves optimum tire slip-angles, increasing front tire grip * Maintains optimum tire grip with less backspaced wheels * Brake caliper bolt pattern is direct carryover from Corvette C5 and C6, opening up many options * Comes standard with a maintenance-free factory GM Corvette C7 hub and sealed bearing * From parking lots to tracks, it simply drives and turns better
Not Yet Reviewed
$7,929.99
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$8,299.99
Speedtech Performance USA Pro Touring 1967-69 F-body complete front subframes are designed as bolt-in packages that will elevate your first generation F-body to an entirely new level of performance. They include a specially matched, high-clearance tubular control arm front suspension; double-adjustable coilover shocks; and power steering rack and pinion for the optimum in handling performance and daily drivability. These suspension packages are available for a variety of classic muscle cars from the 1960s. Additional features: * Strong box-type, laser-cut and JIG-welded construction * Reduced weight over factory frames * Factory-alignment holes offer ease of aligning frame to body * Guldstrand mod geometry already built-in * Upper control arm mounts feature additional camber curve adjustability * Increased header and exhaust clearance * Fully adjustable rear crossmember fits all GM transmissions, as well as T-56 and TKO * Built-in tow/tie-down hooks eliminate strapping around painted frames * Accepts most aftermarket suspension components which fit a factory frame--and that clear coilover shocks * Heat-treated tubular 1 1/4 in. sway bar kit * Power rack and pinion unit with steering arms * QA1 double adjustable coilover shocks with thrust washers and adjusting wrench included; allows for 2 1/2 in. of ride height adjustment * Mounting hardware, instructions, and custom alignment specs
( 1 )
$6,459.99
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$6,934.00
Offered as a high performance direct replacement for the flimsy and cumbersome factory sleeves, Speedtech Performance USA billet tie rod sleeves are designed to eliminate flex and the possibility of jumping threads. They are easier to adjust and they protect the tie rods from the elements--which typically cause factory sleeves to rust. Speedtech sleeves are CAD-designed and CNC-machined in-house, assuring quality and consistency in every set, and then black powdercoated for protection.
Not Yet Reviewed
$69.00
Speedtech Performance USA transmission tunnel covers will save you from major construction on your old musclecar when installing a T-56 transmission with its larger case and different shifter location. This simple, yet effective design works great for use with an aftermarket automatic shifter where a flat mounting surface is required.
( 3 )
$179.00
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$199.00
Speedtech Performance USA LSX headers are made from 304 stainless steel with big tube .065 wall CNC mandrel-bent primary tubes that fit perfectly without requiring dimpling for steering linkage, engine component, or frame rail clearance. Their long tube design provides awesome low-end torque and street performance with excellent mid and higher RPM horsepower. In addition, fantastic ground clearance is perfect for lowered Pro-Touring-type cars--a great overall combination of features! Product details: * Custom designed for high clearance in Speedtech Pro Touring and GM subframes * Long tube design with extra ground clearance * Ribbed flange adds greater strength while reducing heat induced warpage * Stainless investment cast initial bend allows high-flow tighter radiuses * Mandrel bent 1 7/8 in. stainless .065 wall tubes * Cometic MLS gaskets and bolts included * Slip-fit collectors
Not Yet Reviewed
$1,699.00
One of the best things about the world of Pro Touring is that it keeps our street cars up-to-speed with the latest technology better than any other part of the hot rodding industry. Helping you stay current with that technology, Speedtech Performance USA has developed universal LT1/LT4 motor mount adapter plates so that you, too, can have an LT1 or LT4 engine. The easy-to-install engine mount kits include everything you need to mount an LT engine to all the common GM muscle cars—with Energy Suspension polyurethane engine mounts and the necessary hardware for installation. These mounts are a direct bolt-in for cars that came original from the factory, with rubber mounts on the engine and solid stands on the frame. Cars with clamshell mounts on the engine and rubber mounts on the frame will need to convert to the solid frame stand mount style. * These engine mount kits are a "Universal" fit and may not be a direct bolt-in for all applications. Some applications may require minor modification to the frame stand configuration to install properly.
Not Yet Reviewed
$150.00
Speedtech Performance USA base Chicane coilover shock mounts are designed to be welded in place of the factory upper shock mount, converting the factory unit to a double sheer coilover mount for use with coilovers. These mounts are manufactured from laser-cut formed steel and include the coilover shock spacer with the upper bolt and nut assembly. They're available for fitment on a variety of 1960s muscle car applications.
Not Yet Reviewed
$299.00
Speedtech Performance steering arms have been custom-designed for use with Speedtech ATS front spindles. They are specially-created for additional clearance and better geometry for the steering system. Speedtech arms are made from quality materials and bolt directly to the ATS spindle.
Not Yet Reviewed
$449.00
The ability to properly set up the chassis and tune to individual track conditions is one of the basic fundamentals for achieving low lap times. Adjustable spring rate, ride height, and shock dampening is a vital part of that tuning process. True coilover shocks allow for all these to be done in one easily adjustable package, while avoiding issues where other coil and shock combinations fall short. Speedtech Performance USA created the complete Chicane coilover kit for a variety of Chevrolet, Buick, Oldsmobile, and Pontiac cars from the 1960s and '70s—so that coilover shocks can be installed and put to use in your factory frame! Designed to be welded in place of the factory upper shock mount, these kits convert the factory shock mount to a double sheer coilover mount for use with coilovers with a T-bar lower mount. Unlike other kits on the market, being able to make tuning adjustments without removing any components from the vehicle was a primary design goal for the Chicane coilover kit. It allows easy on-car adjustment of ride height, rebound, and compression. Since the factory upper control arm mounting bracket remains unaltered, engine removal is not a requirement for installation. Welding of the Chicane coilover kit is basic and straightforward—and can be completed by a certified welder within an hour. The complete kit includes QA1 double adjustable coilover shocks. Complete Chicane kit includes: * 2 weld-in double sheer laser-cut cages with formed stiffener plate * Coilover spacer * QA1 adjustable coilover shocks * Spanner wrench and thrust bearings * All necessary hardware
Not Yet Reviewed
$269.00
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$1,039.00
Speedtech Performance USA coil spring isolators are for use with their lower control arms when running traditional coil springs. They are made from durable polyurethane to provide a supportive, quiet base for your springs.
( 2 )
$45.00
Speedtech Performance USA transmission mounts feature steel and polyurethane construction to better support your transmission, reduce excessive movement, and absorb vibrations. For your performance application, choose Speedtech USA transmission mounts.
Not Yet Reviewed
$56.99
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