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BUICK GRAN SPORT Parts and Accessories

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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 )

$1,109.95

Wilwood Forged Dynalite Big Brake Front Brake Kits

With Wilwood Forged Dynalite Big Brake front brake kits, you'll be ready for show, street, or strip! Track-ready performance and high-tech style come with oversized rotors, forged billet Dynalite calipers, and high performance Wilwood SmartPads. These front brake kits are fully compatible with OE master cylinder output. Options for the caliper finish and rotor design make it simple to match the brake response and style preferences on all types of daily drivers, race vehicles, and ultra-styled show machines! The choice is yours for big stopping power--choose Wilwood Forged Dynalite Big Brake front brake kits.

4.62 out of 5 stars ( 134 )

$1,100.60

$1,436.24

On Sale

Summit Racing™ Frame Brace Kits

Summit Racing™ frame brace kits are designed to easily install and strengthen the factory frame of your classic car or truck. The benefit of stiffening the frame is improved handling and a tight predictable feel. Reinforce your chassis and create a custom pro touring style, corner carving ride with these Summit Racing™ frame brace kits. *Constructed From DOM tubing *Computer Designed, Machined, and Bent *Welding Required for most kits *Adjustable transmission crossmember for Manuals or overdrives included *Generous openings for Dual Exhaust pipe routing *Exhaust hangers provided

4.22 out of 5 stars ( 69 )

$1,006.99

On Sale

Quick Fuel Q-Series 4-Barrel Carburetors

Get big-time performance with Quick Fuel Q-Series 4-barrel carburetors with high-flow main bodies, which include either down-leg or annular boosters, screw-in idle and high-speed air bleeds, accelerator pump discharge nozzles, and a blended venturi area. These carburetors have CNC-machined billet metering blocks with 4-stage emulsion to provide more precise fuel metering, improve throttle response, and give a more uniform fuel performance curve. With so many great benefits and their blend of performance and drivability, it's no wonder that these Quick Fuel Q-Series carburetors are the popular choice. So, go ahead--throttle it up with Quick Fuel!

4.72 out of 5 stars ( 46 )

$1,449.95


$1,013.95

$1,499.95

UMI Performance Complete Front End Kit

UMI Performance complete front-end kits offer improved handling and great value. These non-adjustable upper and lower A-arm kits not only save you dollars, but weight on your front-end, while adding strength, better ride quality, and reduced bushing deflection. Built from strong DOM tubing, the fully assembled and ready-to-install A-arms have CNC-machined upper and lower ball joint holders and 4140 chromoly cross shafts. UMI upper A-arms feature greaseable Delrin® bushings, and the lower A-arms are supplied with new lower ball joints installed, polyurethane bushings, and sway bar mounting provisions. These UMI kits are designed to work with factory springs and lowering springs mounted in the factory location. The A-arms are given a durable and brilliant powdercoat finish. Order the complete front-end kit designed to fit your vehicle.

4.85 out of 5 stars ( 39 )

$1,239.27

$1,489.99

Ridetech HQ Coilover Kits

Ridetech HQ coilover kits are designed with handling performance and ride quality in mind. They feature impact-forged aluminum threaded body monotube, gas-pressurized shocks that have been clear anodized for corrosion protection. Other features include: oversized rod guides for maximum strength and durability; Delrin coilover spring washers for easy spring retainer adjustments; stainless steel mounting brackets; and CNC-machined billet hardware. The shocks include Hyperco springs (made with high-tensile premium cold-wound steel) that have a durable powdercoat finish. The unique pinch-clamp height adjusters offer finer threads for easy height adjustment. Order the kit designed for your specific vehicle.

4.79 out of 5 stars ( 14 )

$1,040.00

Wilwood DynaPro Radial Big Brake Front Hub Kits

Wilwood DynaPro Radial Big Brake front hub kits are specifically engineered for the 1964-67 Sunbeam Tiger. Maintaining full compatibility with the OE spindle, these Wilwood DynaPro Big Brake kits offer forged billet narrow 4-piston calipers, large diameter rotors, and forged aluminum 4-bolt hubs and hats for this specific group of rear-wheel drive sport compacts. With optional caliper finishes and rotor designs, these kits are the perfect complements to your wheel, tire, and suspension upgrades. Personalize the style and optimize the brake performance of your Tiger with Wilwood DynaPro Radial Big Brake front hub kits.

4.86 out of 5 stars ( 7 )

$1,217.75

$1,355.25

On Sale

Flaming River Tilt Floor Shift Steering Columns

Flaming River tilt floor shift steering columns feature large tube diameters and compact shrouds to create a unique custom look. Designed specifically for use with floor shifters and available in a variety of styles, lengths, and shaft sizes, they come complete with a billet dress up kit (tilt, turn signal lever, and hazard knob), and wiring. They are manufactured from high-quality 304 grade stainless steel, will never rust, and are available in a variety of finishes--including a paintable mill finish, black powdercoated, or polished. Mill finish columns are shipped chemically clean and can be painted to match or highlight any interior with only minor preparation. Key column units (see Ignition Key Location above) include an integrated ignition key located at the 3 o'clock position, with no welded-on attachments or extra relays required. Keyed columns are complete with a key assembly, wiring, and ignition switch.

4.0 out of 5 stars ( 109 )

$1,048.99

$1,119.99

On Sale

Flowmaster Scavenger Series Elite Headers

These Flowmaster Scavenger Series Elite headers open up airflow for serious added power. All Scavenger Series Elite headers are made of high-quality stainless steel and have been polished ceramic coated. They are available in several styles, such as shorty, full-length, and block hugger to accommodate a large variety of vehicles. They have a standard flange design and include bolts and gaskets for installation. Get yourself a set of these Flowmaster Scavenger Series Elite headers to keep yourself ahead of the competition.

3.71 out of 5 stars ( 68 )

$1,199.95


$1,078.95

Doug's Headers Stainless Steel Headers

Experience is in Doug's Headers DNA. They have been a respected name since the 1960s and remain one of today's most popular brands among muscle car enthusiasts who don't sacrifice quality and fit when it comes to their vehicle. Doug's stainless steel headers will give the greatest increases in horsepower and torque across the entire rpm spectrum, and they are meticulously designed to provide maximum power and the highest quality available. Available in many fitments, choose a set designed for your vehicle. Key features: * 304 stainless steel construction to prevent rust and corrosion * 3/8 in. thick machined flanges to prevent warping * Mandrel-bent tubes for an accurate fit and improved flow * Precision formed long transition collectors reduce backpressure * Header tubes have a natural stainless finish * Necessary mounting hardware, collector reducers or connector pipes, premium gaskets, and detailed installation instruction sheets are included

4.18 out of 5 stars ( 33 )

$1,060.95

Classic Performance Complete Front and Rear Disc Brake Kits

Classic Performance complete front and rear disc brake kits are designed as direct bolt-on applications. They include front rotors and calipers, a master cylinder, and rear rotors and calipers. The complete kits are available in different configurations to fit either stock or aftermarket drop spindles. Brake lines, a proportioning valve, and mounting hardware are also included to complete the installation. Improve your ride, braking, steering, and handling with Classic Performance complete front and rear disc brake kits.

3.9 out of 5 stars ( 21 )

$1,297.99

On Sale

Flowmaster American Thunder Exhaust Systems

Flowmaster American Thunder exhaust systems are designed with the latest exhaust technology available--resulting in improved acceleration, passing power, and fuel mileage. A key to these performance upgrades is Flowmaster's use of mandrel-bent tubing, which allows superior exhaust gas flow. The systems also feature mufflers (single or dual) that deliver plenty of the rich Flowmaster sound you expect. Components are built from stainless steel or aluminized steel; and some models include tips. American Thunder exhausts are available in more than a hundred configurations for fitment on specific truck and car applications.

4.37 out of 5 stars ( 552 )

$1,075.95

On Sale

Flowmaster Stainless Steel American Thunder Exhaust Systems

Flowmaster Stainless Steel American Thunder exhaust systems have been designed with the latest exhaust technology available. Through this technology, you will experience improvements in acceleration, passing power, and fuel mileage. The key to these performance improvements is Flowmaster's use of mandrel-bent tubing. Their tubing allows for superior exhaust gas flow, while their stainless steel construction allows for their corrosion-resistant qualities. These American Thunder exhaust systems also feature a stainless steel muffler(s) that'll give you plenty of Flowmaster sound.

4.4 out of 5 stars ( 306 )

$1,229.95


$1,105.95

Clayton Machine Muscle Car Pedal Assemblies

Clayton Machine muscle car pedal assemblies are designed as bolt-in units for your classic muscle car. They feature lightweight aluminum construction, with a unique graphite powdercoat applied on the arms—and natural pedals with built-in rubber pads. These pedal assemblies include all mounting hardware and are available for either automatic or manual transmission applications.

3.4 out of 5 stars ( 10 )

$1,021.95

McLeod RXT 1200 Clutch Kits

Intended for the high horsepower street/strip fan, McLeod RXT 1200 twin disc clutch kits are able to handle 1,200 crank horsepower. With a higher clamp load than standard RXT twin disc clutch kits, RXT 1200 clutch kits can handle almost any horsepower you can throw at them and still remain streetable. Ceramic-lined clutch discs provide smooth engagement with a stock-like pedal feel to make them ideal for the street performance enthusiast. A flat-style flywheel with a crank relief of 6.250 in. diameter or less is required for proper fitment.

5.0 out of 5 stars ( 12 )

$1,295.00

Global West Suspension Coilover Kits

Lowered vehicles look great, and doing the job properly will save you headaches from suspension problems developing later on. With Global West Suspension coilover kits, lowering the front of your car or setting corner weights can easily be done. These coilover spring kits are designed to install on any replacement shock that does not already have a threaded shock body. The upper spring mount of these coilovers simulates the exact load that a stock coil places on the upper mount, reducing the chances of premature wear. Plus, thrust bearings are used between the spring and adjuster so you can easily set the ride height. Whether you're an aggressive street or road racing enthusiast, Global West coilover kits will fit your style with performance advantage results. Order the kit recommended for your classic vehicle.

5.0 out of 5 stars ( 2 )

$1,371.78

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 )

$1,069.99

Flaming River Classic Bell Floor Shift Steering Columns

Flaming River Classic Bell floor shift steering columns feature all-new components. They come complete with billet aluminum tilt/turn signal levers and hazard knobs, a GM 4 1/2 in. wiring connector, and a high-amperage ignition switch. These steering columns are manufactured from durable 304 stainless steel, and are available in natural, black powdercoated, and polished finishes.

3.0 out of 5 stars ( 1 )

$1,048.99

American Powertrain Hydramax Hydraulic Clutch Release Systems

Skip the clunky old mechanical linkage and install American Powertrain Hydramax hydraulic clutch release systems. They easily install in almost any rear-drive vehicle. The patent-pending adjustable master cylinder bracket allows you to mimic any original clutch rod angle, giving you a smooth, modern clutch feel without hacking up your firewall. The systems are designed to work with original and aftermarket pedals and are available for most vintage 4-speeds, along with TREMEC T5, TKO, Richmond, T56, and Magnum 6-speed transmissions. These systems come with the nickel plated firewall mount, volume-matched master cylinder, as well as a reservoir kit, lines, fittings, model-specific pedal mounting hardware, and model specific internal or external slave cylinder.

3.81 out of 5 stars ( 83 )

$1,050.00

$1,150.00

Helix Front Tubular Control Arms and Coilover Conversion Kits

Helix front tubular control arms and coilover conversion kits are a precision balance of ride comfort, performance, and maximum road adhesion. You'll immediately feel the difference with Helix coilovers—with reduced body roll in corners, nose drive and squat when accelerating. The springs are manufactured from the highest quality spring steel available, using state-of-the-art equipment and the latest technology. Kits are available for a wide range of big block and small block applications spanning more than a half-century.

Not Yet Reviewed

$1,495.50

SPC Performance Control Arms

Adjust camber and caster for maximum handling and performance with these control arms by SPC Performance. These control arms allow for changes when fine-tuning suspension alignment angles. They're available for a wide variety of applications, such as street rods, sport compact, muscle cars, performance vehicles, and race cars. Fine tune your suspension with SPC Performance control arms.

4.59 out of 5 stars ( 165 )

$1,095.95

$1,376.99

Ridetech HQ Series Shockwave Air Shocks

Having the proper suspension plays a big part in the outcome on the track--Ridetech HQ Series Shockwave air shocks are just what you've been looking for to add that desired performance to your vehicle! They improve ride quality over steel springs and provide a huge range of tuning options. Ridetech HQ Series Shockwave air shocks' mounting styles accommodate a wide variety of applications with more configuration options than ever before. They feature aluminum impact-forged construction for leak-free operation, and a monotube design for superior oil control, ride quality, and handling. You no longer have to settle for less when you have Ridetech HQ Series Shockwave air shocks on your vehicle! Features include: * Adjustable ride height--lower and raise the vehicle quickly without sacrificing drivability or durability * For longevity, the air spring is made from same high-quality rubber that 18-wheelers use * Available in a wide range of stroke lengths * Easy and precise single rebound shock valving adjustment with 26 clicks * Large rubber external bump stop to prevent harsh bottoming out * 5/8 in. hardened shaft is precision ground and straightened to a tolerance of .001 in. for increased durability and performance * Billet end cap with integrated debris wiper to prevent seal damage * Oversized rod guide improves piston rod stability * Integral internal bump stop prevents extension crashing * Hard coat external anodizing for lasting beauty and performance * Teflon piston wiper and progressive valving provide consistent piston/bore contact for repeatable performance * Monotube bore is cathode anodized for wear resistance * Specially-contoured composite gas separator cup optimizes dead length and ensures proper nitrogen/oil separation * Long-lasting KEVLAR® -lined bearings allow wide articulation with low noise

4.33 out of 5 stars ( 3 )

$1,170.00

PSC Pro Touring Steering Boxes

PSC Pro Touring steering boxes offer performance power steering. These steering gears are top-quality direct replacements that also deliver value with performance. Select the model designed for fitment on your vehicle.

5.0 out of 5 stars ( 3 )

$1,095.00

SSBC-USA Drum to Disc Brake Conversion Kits

Upgrade your braking system with SSBC-USA's drum to disc brake conversion kits. You'll enjoy the rhythm of modern stopping power afforded you with their cast iron or aluminum calipers, brake pads, rotors, and all necessary brackets, hardware, and bolts. Order the SSBC-USA drum to disc brake conversion kits designed for fitment on your vehicle—front, rear, or both.

3.03 out of 5 stars ( 33 )

$1,054.00