Selected Filters


Loading...

Availability


2003 FORD MUSTANG Parts and Accessories

Not Showing Customizable Items. View Customizable Items.

Part Groups

Results 1 - 24 of 352

SCT X4 Power Flash Programmers

SCT X4 Power Flash programmers arrive to you pre-loaded with dyno-proven tune files for select vehicles, to unlock your vehicle's hidden potential! Programming your vehicle with one of SCT's pre-loaded tune files is as easy as 1-2-3. Simply plug the OBD-II connector into vehicle's OBD-II port, select the pre-loaded tune files using the simple to navigate menu and in minutes the X4 programs your vehicle for your particular driving style. Additional features and facts about SCT X4 Power Flash programmers include: * Stores up to 10 custom tune files * Full color LCD display * High-speed data logging/monitoring * Reads/clears DTC trouble codes * Dual analog inputs * Most popular vehicles supported * Installs quickly and easily * Easy restoration back to stock * User adjustable vehicle parameters * USB Interface cable included

4.01 out of 5 stars ( 98 )

$399.00

Instant Rebate

Derale PWM Adjustable Fan Controller Kits

Enhance your engine's performance with a Derale PWM adjustable fan controller kit. Utilizing cutting-edge technology, these Derale Performance fan controllers constantly adjust fan speed to keep the desired engine temperature that can be preset. Additional features include: * Constantly adjust fan speed to maintain the desired temperature * Control multiple electric fans up to 65 amp capacity * Finned aluminum housing * Automatic resetting circuit breaker * Air conditioning override circuit built-in

3.73 out of 5 stars ( 22 )

$309.57

On Sale

Holley Retrofit Engine Oil Pans for GM LS Engines

Holley retrofit engine oil pans for GM LS engines are designed to install an LS engine in a variety of GM muscle car and truck chassis. They provide OEM fitment, OEM oil filter mounting, OEM oil cooler port provision, OEM engine NVH suppression, OEM flange gasket and sealing, proper structural rigidity, and OEM bellhousing attachments. The oil pans are manufactured from traditional high-quality cast aluminum and include a sump baffle, oil pump pickup tube, sump plug, oil filter stud, and oil passage cover.

4.61 out of 5 stars ( 249 )

$449.95

$526.95


$403.95

$473.95

AJE Suspension Mustang Tubular K-Members

Lose some weight and gain some space with AJE Suspension Mustang tubular K-members. With steel components, your Mustang's front-end will receive K-member suspension technology to make your car that much better than stock. Available with or without engine mounts, AJE Suspension K-members are powdercoated black for exceptional, lasting good looks and will work with factory A-arms and springs with bolt-on perches. Remove some weight and add some strength to your pony with aftermarket AJE Mustang tubular K-members.

4.42 out of 5 stars ( 45 )

$359.99

SCT BDX Performance Programmers

SCT BDX performance programmers include features that'll keep you in the fast lane! These computer programmers are bred to sharpen and maximize your rig's potential to tackle tough terrain, pull heavy payload, and gain the most fuel economy on the highway. SCT gas and diesel programmers are equipped with on-screen gauges, the capability of holding 10 custom tunes, and data logging/monitoring of critical engine parameters. BDX units allow you to adjust nearly two dozen functions (options vary for each vehicle). All of this is packed into compact, sleek, hand-held designs with full-color, easy-to-use LCD displays. Unleash more horsepower and torque when you need it the most—on and off-road. You'll stay ahead of the pack with SCT BDX performance programmers. Order the model recommended for your vehicle application.

4.22 out of 5 stars ( 18 )

$399.00

On Sale

MSD Ford Blaster Coil-on-Plug Ignition Coil Packs

These MSD Ford Blaster Coil-on-Plug ignition coil packs feature a patented winding design and direct bolt-in replacement. The improved spark energy and voltage of the coil packs, combined with their reliability, have made them a favorite of performance enthusiasts. They are designed as direct bolt-in replacement coils for many SOHC Ford V8 modular engines. The housing and installation are the same as the factory coils, but that is where the similarity ends. Inside the MSD coil packs, engineers used better quality materials to assemble the primary and secondary windings. The MSD Ford Blaster Coil-on-Plug ignition coil packs take the spark energy right out of the coil and put it across the plug gap to improve the combustion and output of the engine.

4.75 out of 5 stars ( 366 )

$357.95


$260.95

$368.95

SCT Livewire TS Plus Performance Programmer and Monitors

SCT Livewire TS performance programmer and monitors let you tap your ride's hidden performance and excitement! SCT Livewire plus touch screens are easy to set-up, use, and navigate to quickly upgrade your boring factory-calibrated vehicle computer for a high performance driving experience. These tuner kits are available for both gas and diesel vehicles plus they include a windshield mount to keep your data at eye level. You're not like everyone else and your driving experience doesn't need to be mediocre! Power tune with SCT Livewire TS Plus performance programmer and monitors. SCT Livewire TS Plus features: * Color 4 in. touch screen display * Rear view camera input * Automatic on/off/sleep mode * Holds up to 10 custom tunes * Reads and clears DTC codes * Built-in performance calculator * High-speed data logging and monitoring * User adjustable tune options * User selectable graphics and gauge layouts * User adjustable warnings/alerts * Adjust for different size fuel injectors * Disable CMCV to prevent CEL * Remove, increase, or decrease vehicle's speed limiter * Increase or decrease idle speed * Disable traction control * Add or remove timing by rpm range * Add or remove fuel at wide open throttle * Change transmission shift pressure - automatic transmissions only * Set gear ratio to correct shift patterns and vehicle's speedometer * Set tire size to correct shift patterns and vehicle's speedometer * Stores vehicle's stock file before programming * Supports and holds custom tunes * Adjust electric fan engagement temperature Custom Tune File Adjustable Options: * Increase or decrease idle speed * Remove, increase, or decrease vehicle's rpm limiter in Drive * Remove, increase, or decrease vehicle's rpm limiter in Neutral * Remove, increase, or decrease vehicle's speed limiter * Adjust electric fan engagement temperature * Add or remove fuel at wide open throttle * Set gear ratio to correct shift patterns and vehicle's speedometer * Set tire size to correct shift patterns and vehicle's speedometer * Increase or decrease the wide open throttle shift points of each gear individually * Change transmission shift pressure - automatic transmissions only

4.13 out of 5 stars ( 52 )

$499.00

DeatschWerks Fuel Injectors

DeatschWerks fuels your passion for performance with fuel injectors specifically designed and engineered for your Sport Compact, Modern Muscle, and European vehicles. DeatschWerks fuel injectors are manufactured to fit your OE harness, fuel rail, and manifold. Because they are application-specific, you'll spend less time installing and tuning, so you can spend more time enjoying the increased performance of your ride! They provide an excellent spray pattern and atomization for optimized idle and tuning. Each set is flow-matched both statically and dynamically, and flow-balanced to within one to two percent. A flow report is included with each set of DeatschWerks fuel injectors.

4.69 out of 5 stars ( 70 )

$389.00

$499.00

McLeod Steel Flywheels

Sometimes you just want steel! Lightweight alloy flywheels can offer substantial benefits for certain situations, but sometimes they're just not your cup of tea. Maybe you're on a budget, maybe you're running a heavy drag car, or maybe you just don't need those benefits. If that's the case, McLeod has the answer. Their steel flywheels deliver all of the strength and reliability that you need, at a substantially lower price. They're neutrally balanced, but are drilled to accept balance weights for use on externally balanced engines. McLeod steel flywheels available for a wide variety of large and small engines.

4.42 out of 5 stars ( 103 )

$329.00

FTI Performance SB Series Torque Converters

FTI Performance SB Series torque converters are an excellent choice for mildly modified engines. They work well in street rods with air conditioning, as well as weekend bracket racers. The converters feature Torrington bearings, hardened impeller hub, hub furnaced and TIG-welded fins, high performance clutch lining, and strengthened sprague.

4.21 out of 5 stars ( 85 )

$499.00

ATI Super Damper Serpentine Series Harmonic Balancers

ATI Super Damper Serpentine Series harmonic balancers are patented and feature grooves for serpentine belts machined into the outer damper shell. The dampers come with six outer grooves for standard OEM drive systems—but eight and 10 grooves are available for supercharger or turbo applications. Serpentine dampers are offered in a variety of diameters, and crank hubs may be fitted with a 6-groove serpentine pulley to drive external oil pumps or vehicle accessories. The Serpentine Series Super Dampers fit all ATI GM-front crank hubs and can be adapted to many engine combinations, providing maximum flexibility. They're available in steel or lightweight, hardcoated aluminum. Features and benefits: * Eliminates torsional crankshaft vibrations * Exceeds SFI 18.1 specs * Black zinc chromate finished * Tunable, rebuildable, and extremely efficient at all rpms * Laser-engraved 360 degree timing marks

4.74 out of 5 stars ( 246 )

$383.50

$449.12

Bully Dog BDX Tuners

Bully Dog BDX tuners are bred to sharpen and maximize your rig's potential to tackle tough terrain, pull heavy payload, and gain the most fuel economy on the highway. Bully Dog gas and diesel programmers are equipped with on-screen gauges, the capability of holding 10 custom tunes, and data logging/monitoring of critical engine parameters. All of this is packed into compact, sleek, handheld designs with full-color, easy-to-use LCD displays. Unleash more horsepower and torque when you need it the most--on road and off; stay ahead of the pack with Bully Dog BDX tuners.

3.5 out of 5 stars ( 16 )

$399.00

Yukon Gear & Axle Dura Grip Positraction Carriers

Yukon Gear & Axle Dura Grip positraction carriers offer great traction and strength, and yet are not overly aggressive for the streets. These nodular iron or steel replacements are 4-spring, Raybestos composite, clutch-style, limited-slip carriers—with internal gears machined from forged 4320 steel with stronger teeth. Assembled in the USA, the Yukon differential carriers are rebuildable, allowing for repairs or modifications without buying a new unit. They're available for fitment with nearly two dozen axle models. What are you using to transfer power? Choose smooth operation with strong lockup abilities to transfer torque—benchmarks of the Yukon Gear & Axle Dura Grip positraction carriers.

4.38 out of 5 stars ( 141 )

$427.00

On Sale

Superchips Flashpaq Tuners

Superchips Flashpaq tuners will optimize both engine and transmission calibration throughout the entire powerband. They're effective from part-throttle through wide-open throttle. Features include: * Internet updateable * Built-in diagnostic trouble code definitions * Built-in help screens * USB communications * Custom application upgradeable * Multiple tuning levels * Increased user options for more control * Ergonomically-designed case * Large, soft key buttons * Permanently mounted cable * 300 percent larger screen * Backlit screen for easy-to-read night use

3.99 out of 5 stars ( 98 )

$460.95


$413.95

Lares Power Rack and Pinions

Lares offers brand new power rack and pinions for a variety of applications. Engineered to OE specifications, each unit is inspected, adjusted, and hydraulically tested. These assemblies convert the rotational motion of your steering wheel into the linear motion needed to turn the wheels. Rack and pinions are backed with a Limited Lifetime Warranty (or one-year for commercial use). Order the model recommended for your vehicle.

4.0 out of 5 stars ( 10 )

$377.99

Bilstein B6 Performance Series Shocks and Struts

Discover the full potential of your car or truck with Bilstein B6 Performance Series shocks and struts. These suspension components have been developed, tuned, and tested to provide superior control, precise handling, increased traction, and enhanced stability—without sacrificing comfort. Whether you're looking for better street performance or a comfortable ride with off-road and heavy hauling ability, Bilstein has a set of B6 shocks and struts that will do the job.

4.79 out of 5 stars ( 858 )

$285.00

Summit Racing™ Aluminum Driveshafts

Get your hot rod, track car, or daily driver moving with Summit Racing™ aluminum driveshafts. Recommended for applications putting out up to 700 lb/ft of torque, they are constructed from aluminum to reduce overall weight, which translates into more power getting to the wheels where it can do its job! We use the best seamless tubing to ensure the ultimate in strength and rigidly. Whether you are looking for another tenth or two off of your ET, or just better throttle response in your hot rod, Summit Racing™ will take care of you with aluminum driveshafts.

4.66 out of 5 stars ( 202 )

$405.99

On Sale

UniSteer Rack and Pinions

UniSteer rack and pinions are designed to provide precision steering for easier driving. Made from cast aluminum with a variety of finishes available, these replacement racks can be ordered to complement either manual or power-assist configurations. They're offered in fitment applications for a wide range of year, make, and model vehicles. Accessories included will depend upon the model you select. Better steering control begins with UniSteer! UniSteer stands behind their products with a 2-year, Unlimited Mile Warranty.

3.56 out of 5 stars ( 57 )

$330.99


$297.89

McLeod Street Level Clutch Kits

McLeod Street Level clutch kits are the perfect choice for entry level replacements for the street. They include high clamp load pressure plates for increased holding power and organic discs for smooth and even engagement. Offered for a wide range of applications, these complete kits are recommended for vehicles with mild bolt-on upgrades. Replacing your stock setup with one of these efficient McLeod Street Level clutch kits will prove to be an excellent value. Order the model/options designed for your vehicle and engine.

4.15 out of 5 stars ( 41 )

$255.00

$275.00

Richmond Gear EXCel Ring and Pinion Sets

Richmond Gear EXCel ring and pinion sets are manufactured to meet the exacting specifications required by Richmond Gear. The design, tooling, steel selection, and heat-treat recipes are all controlled by Richmond Gear to produce cost-alternative ring and pinion sets. The Richmond Gear EXCel ring and pinion sets offer exceptional value with better-than-OEM quality. Available in a wide variety of gear ratios, the Richmond Gear EXCel ring and pinion sets will give you maximum confidence in your differential.

4.19 out of 5 stars ( 144 )

$279.92

$339.99

COMP Cams Adjustable Cam Gears

Tune your camshaft timing with COMP Cams adjustable cam gear sets. Your 2 and 4-valve engines have the capacity to make horsepower, but the factory timing gear setup can keep you from accomplishing your goals. COMP Cams adjustable cam gear sets provide up to 12 degrees of camshaft advance or retard, install just like the original factory gears, and work with OE timing chains. The sets feature both a steel hub and a steel outer gear for heightened durability and light weight. The ability to adjust the cam timing is important when your performance engine modifications are completed. Get the most from your engine with COMP Cams adjustable cam gear sets.

4.83 out of 5 stars ( 6 )

$341.95

Ford Performance Parts Axle Girdles

Ford Performance Parts axle girdles are a great way to strengthen the rear-end of your car. Made of lightweight aluminum, they incorporate load bolts that provide additional support for differential bearing caps. Because they reduce the amount of flex in your differential while under load, they significantly reduce bearing wear and chipped teeth on the ring and pinion. They provide increased ring and pinion gear life and are a definite must for all racing and high performance street cars. Additional information: * Available for a variety of applications, including some independent rear suspensions * Replaces OE rear cover * Covers with cooling fins and machined for differential cooler pickup and return fittings recommended for road racing or extended high-speed/high-temperature applications * Models equipped with differential coolers may require modifications * Check exterior clearance to chassis/suspension

4.99 out of 5 stars ( 77 )

$301.99

Ford Performance Parts 4.6L 2V PI Intake Manifolds

Replace your broken or cracked intake manifold with an updated 1999-2004 Mustang GT 4.6L 2V PI intake from Ford Performance! The factory GT intake manifold had a plastic coolant crossover that eventually cracked over time, causing increased heat and wear to your engine. Ford Performance has now updated this intake manifold with a new runner design and tooling used to bring back a PI intake manifold. One of the largest improvements was to update the gaskets on the intake to more modern integrated O-ring seals for an easy installation without extra gaskets needed. Another major improvement was the change to an all-aluminum coolant crossover with two sensor bungs, which works with multiple applications. All mounting locations are reinforced and have metal threaded inserts for the fuel rail, coil packs, and lower intake plenum, compared to threading into plastic like other aftermarket options. Ford Performance also includes a new 195 degrees thermostat, thermostat gasket, and alternator bracket. Additional details: * Larger bell mouth * Shorter runner * More rounded runner * Deeper plenum * Fits 1999-2004 Power Improvement (PI) heads * Designed for off-road use; can be used on 1996-98 engines with Performance Improvement (PI) heads (custom calibration required) * Additional parts and modifications may be required * Eliminate irritating coolant leaks and ensure the engine in your 1999-2004 Mustang GT is performing as it should

Not Yet Reviewed

$331.99

Air Lift Load Controller I Systems

Air Lift Load Controller 1 systems are the ultimate in heavy-duty air control. They're designed for heavy applications such as motor homes, towing fifth wheels, and commercial use. These systems work great on class A and C motor homes, and adjust easily for changing road and load conditions.

4.61 out of 5 stars ( 18 )

$407.99