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2003 CHEVROLET SILVERADO 2500 HD Parts and Accessories
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HP Tuners VCM Suite MPVI4 Credit Pro Packages
HP Tuners Introduces VCM Suite MPVI4 Credit Pro packages, the latest evolution of their industry-leading OBDII interface. Built for professionals and enthusiasts alike, the computer programmers connect your vehicle to VCM Suite software (5.2+) for faster, smarter, and more powerful tuning and diagnostics than ever before. With upgraded hardware, expanded connectivity, and future-ready Wi-Fi capabilities, the MPVI4 redefines what's possible in performance calibration and data acquisition. Models are available with 0, 2, 4, 6, or 8 credits. HP Tuners VCM Suite MPVI4 Credit Pro packages feature: * Improved standalone logging: the most powerful device yet, capable of delivering standalone logging performance on par with VCM scanner and a wired connection * Upgraded hardware architecture: New internal processor for improved data throughput and flashing performance; 30x more memory than previous generation MPVI3 * High-speed USB-C connectivity: Faster, more reliable communication with your PC and vehicle * Bluetooth 5.2: Seamless wireless connection for scanning, logging, and TDN support * Wi-Fi ready (future update): Wireless VCM Suite connectivity coming soon * Enhanced storage and efficiency: Increased onboard memory for robust logging sessions * Improved OBDII fitment: A revised, tapered design means a more secure connection and better compatibility with even more makes/models * Built-In Pro feature set: Standard on every MPVI4, enabling standalone data logging and external sensor integration with PROLINK+ * RGB status LEDs: Clear visual indicators for power, connection, and activity status * Cross-Platform Compatibility: Works with VCM Suite (5.2+), TrackAddict, and RaceRender
( 4 )
$799.91
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.
( 69 )
$799.00
PureFlow AirDog II-5G Fuel Air Separation Systems
PureFlow AirDog II-5G Fuel Air Separation Systems are the next generation in fuel delivery for a variety of diesel engine applications. The 5G is designed to be the longest lasting, most efficient, and quietest lift pump. AirDog II-5G utilizes a diaphragm-style fuel pressure regulator, allowing the pump to be boost referenced and adjusted from 7-70 psi. The 5G fuel/air separation system features a 4-bearing motor with an intermediate shaft that improves reliability and reduces pump noise. A demand flow design allows the pump to only send the necessary amount of fuel to the engine. The dual feed motor supplies fuel to both sides of the gerotor pump to decrease air bubbles that cause cavitation. The 5G system features larger 3/4 in.-16 O-ring boss inlet and outlet ports. A 7/16 in.-20 (-4) low-flow return is used to prevent aeration in the fuel being sent back to the tank. Order the model recommended for your vehicle. Additional features: * 220 or 165 gph pump models available * 4-beating motor with intermediate shaft * Larger ports over previous pumps * Diaphragm fuel pressure regulator * Demand flow design * Reduced aeration from low flow return
Not Yet Reviewed
$788.00
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$816.00
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.
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$849.95
$763.95
Eaton Detroit Truetrac Differentials
Eaton Detroit Truetrac differentials use a patented design of parallel-axis planetary helix gears to provide a quiet, automatic splitting of torque. They perform like a limited-slip differential under normal driving conditions, automatically transferring torque to the wheel with better traction when ground conditions warrant. These replacement units are available for dozens of axle applications.
( 509 )
$939.99
Nitrous Express 3-Bolt Plate Nitrous Systems for GM LS Engine
Nitrous Express 3-bolt plate systems for GM LS-style engines feature a billet nitrous plate that installs between the throttle body and intake manifold, making installation quick, easy, and attractive on all LS car and truck intakes with a 3-bolt throttle body. Power levels can be adjusted between 50, 100, 150, 200, 250, 300 and 350 horsepower. Order the system preferred for your setup. Systems include: * Billet nitrous plate * Choice of 5 lb., 10 lb., 12 lb., or 15 lb. aluminum bottle * Stainless steel bottle brackets * ProPower Lightning Series solenoids * 6 AN feed line * Braided stainless steel solenoid to plate lines * Master arming switch * WOT switch * Every nut, bolt, and electrical connector needed to complete installation
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$857.57
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$945.66
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.
( 140 )
$811.99
Air Lift WirelessAir 2nd Generation On-Board Air Compressor Systems
Air Lift WirelessAir 2nd generation on-board air compressor systems allow you to inflate and deflate each air spring independently to different pressures. The one-touch control from inside or outside the vehicle makes them perfect for uneven or top-heavy loads. And with two user-defined memory buttons, WirelessAir can remember your frequently used settings. Control the air like a boss with your Air Lift WirelessAir 2nd generation kit. Features and items: * LCD-display wireless controller * Compact, dual-path design * Bluetooth-enabled manifold allows for over-the-air software updates * Heavy-duty air compressor * All wiring, hardware, and fittings required for installation
( 1 )
$778.99
Eaton Posi Performance Differentials
Big torque doesn't have to mean big traction problems. Eaton Posi Performance differentials combine carbon friction discs with precision-forged gears to give you great traction, even under higher torque loads. Plus, the carbon friction discs produce smooth, quiet performance for the life of your vehicle.
( 104 )
$911.99
Yukon Gear & Axle Carrier Bearing Pullers
Whether you're setting up ring and pinion gears or doing general differential repair, do it with Yukon Gear & Axle carrier bearing pullers. These tools work with an impact gun to quickly and safely remove your carrier bearings while minimizing the risk of damage. These pullers come with a handy bench top-stand and work on most standard size carrier bearings and pinion bearings on differentials. For all of your drivetrain needs, use Yukon Gear & Axle!
( 5 )
$769.99
BDS Suspension Front Upper Control Arms
Time for a suspension upgrade? You can increase wheel travel by upgrading your OE upper control arms to BDS performance. BDS Suspension front upper control arms are specially designed for leveled and lifted applications, and they come fully assembled, ready to install right out of the box. Built from high-strength 1.5 in. O.D. x .120 in. thick wall steel tubing, the UCAs feature an indexed ball joint cup to correct the ball joint positioning. They can be used with BDS lift kits and other lift and leveling kits on the market. The frame mounting ends feature durometer-specific rubber bushings and premium quality, greaseable ball joints for smooth, quiet operation, and superior durability compared to arms featuring uniballs, poly bushings, or heims. Choose the upper control arms designed for your vehicle.
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$770.95
JBA Performance Exhaust Cat4ward Headers
Increase your horsepower and torque with JBA Cat4ward headers! They are designed with 3/8 in. thick laser-cut flanges, mandrel-bent primary tubes, and feature JBA's patented Firecone merge collectors. They're available in either steel or 409 stainless steel and are offered in a chrome plated or high-temperature silver ceramic finish for most applications. JBA includes premium-quality mounting hardware and instructions for the installation and, unless otherwise noted, these headers are designed to fit the vehicle as it came from the manufacturer. This would include components such as cylinder heads, chassis, steering, motor mounts, body mounts, bushings, etc. If aftermarket components, parts from other applications, or custom-altered parts are used on your vehicle, it is the installer's responsibility to verify fitment.
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$816.45
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$866.30
Aeromotive Phantom Direct-Fit Fuel Pumps
Aeromotive Phantom direct-fit fuel pumps are drop-in systems engineered for your late model truck. They're available in five pump sizes, from single 340 lph to triple 450 lph. Designed to work with plastic fuel tanks, Phantom Series pumps cover a range of GM truck models spanning decades. The 1999-2004 models used a smaller factory fuel sending unit than the later 2005-17 models. The smaller size unit limits the pump configurations that this tank will accommodate. Aeromotive Phantom direct-fit fuel pump systems are also compatible with different tank depths.
( 2 )
$789.95
Nitrous Express 4-Bolt Plate Nitrous Systems for GM LS Engine
Nitrous Express 4-bolt plate systems for GM LS-style engines feature a billet 90mm or 102mm nitrous plate that installs between the throttle body and intake manifold, making installation quick, easy, and attractive. Power levels can be adjusted between 50, 100, 150, 200, 250, 300, 350 and 400 horsepower. The systems are pre-machined with a second set of nitrous and fuel passages so you can easily upgrade to a dual stage system down the road. (Special note: These kits will work on 2010 and newer Camaros if you rotate the throttle body 180 degrees.) Order the model best suited for your setup. Systems include: * 90 or 102mm nitrous plate * Choice of no bottle, 5 lb., 10 lb., 12 lb., or 15 lb. bottle * Stainless bottle brackets (except no bottle system) * ProPower Lightning Series solenoids * 6 AN feed line * Braided stainless steel solenoid to plate lines * Master arming switch * WOT switch * Every nut, bolt, and electrical connector needed to complete installation
( 3 )
$857.57
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$945.66
On Sale
Summit Bucks
Mishimoto Performance Radiators
Mishimoto performance radiators are designed and engineered to maximize cooling efficiency, boost engine functions, and, most of all, protect your engine from overheating. Many stock radiators can't handle the additional heat that comes higher horsepower levels. So, swap out your stock radiator for an all-aluminum Mishimoto. Key features and benefits of Mishimoto performance radiators include: * Available for universal and exact fit applications (no cutting or modifications required) * All-aluminum construction for optimal heat dissipation, improved strength, and reliability * Increased cooling capacity due to their massive core size * 100 percent brazed aluminum core for minimal distortion, low stress, and clean joints * Available in various sizes with 2-row or 3-row cores * TIG-welded for clean, strong welds and increased durability * Magnetic drain plugs capture metallic debris or fragments * Included high-pressure 1.3 bar cap raises the coolant boiling point for greater safety and efficiency * Automatic transmission and accessory coolers included where applicable
( 338 )
$949.87
Gibson Headers
Gibson headers are performance-tuned and engine-matched to unleash your vehicle's full potential. These headers are well-suited for lowered or raised pickups and tow vehicles—because the performance gains are engineered to come in at low and midrange rpm highway speeds. They feature mandrel-bent primary tubing for increased flow, and they bolt on quickly and easily. Installing Gibson headers will give you increased horsepower and response and a cooler-running engine. Unless otherwise noted, these headers are designed to fit the vehicle as it came from the manufacturer. This includes components like cylinder heads, chassis, steering, motor mounts, body mounts and bushings, etc. If your vehicle is using aftermarket components, parts from other applications, or custom altered parts, then it is the installer's responsibility to verify fitment. Gibson headers are available in a variety of sizes, configurations, materials, and finishes. Order the model recommended for your vehicle.
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$861.99
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$912.99
Dorman Driveshafts
Dorman driveshafts are designed to replace your factory originals with no modifications. They are manufactured from quality materials and have the stock connections for an easy bolt-in fit. The driveshafts are available in various lengths, diameters, and materials for many auto, truck, and SUV applications.
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$750.99
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$952.99
South Bend Clutch Stage 2 Daily Driver Clutch Kits
South Bend Clutch Stage 2 Daily Driver clutch kits are engineered for vehicles with high performance modifications. The heavy-duty pressure plate has an increased clamp load with little or no increase in pedal pressure to offer stock feel, while increasing strength and durability. The organic disc material has a high metal content that increases the co-efficient of friction by two times over a stock lining. This greatly increases rotational strength up to a 12,000 rpm burst point for high performance. South Bend Clutch Stage 2 Daily Driver clutch kits are recommended for daily performance, street, and moderate race vehicles. Select the kit designed for your application needs.
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$841.39
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$899.42
Summit Racing™ Positraction Differential Carriers
Summit Racing™ Positraction differential carriers deliver aggressive, yet smooth, controllable traction. Our carriers feature nodular iron cases, forged steel internals, strong teeth—and they're fully rebuildable. We offer fitments for dozens of axle models. Whether replacing or upgrading, Summit Racing™ Positraction differential carriers will put power to the pavement, providing the confidence and performance you need.
( 50 )
$904.99
JBA Performance Exhaust Exhaust Systems
When it comes to performance exhaust systems, most people are looking for three things: power, sound, and quality. JBA exhaust systems deliver the best of all three, giving them both great looks and performance. One of the first performance upgrades typically made to a vehicle is the addition of a performance exhaust system. While there is a high demand for performance sound, the capacity for power in the JBA exhaust systems gives JBA the extra edge. Each of these systems is tuned to provide the best possible exhaust tone without being overwhelming from within the vehicle. By replacing the restrictive factory exhaust system with free-flowing, mandrel-bent stainless tubing and quality performance mufflers, JBA has developed the power, sound, and efficiency desired in a vehicle. Each of these kits is finished with a polished, chrome plated, stainless steel tip that resists discoloring, along with high-quality hardware and thorough instructions for a simple bolt-on installation.
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$830.20
Firestone Ride-Rite Analog All-In-One Kits
Firestone Ride-Rite Analog All-In-One kits allow you to adjust your Ride-Rite air springs with the simple press of a button. This can be done thanks to the in-cab analog gauge display—and the feature is great for adapting to different load amounts and environments on and off the road. These kits come with air springs, compressor, air accessories, and all components needed for installation. Order the model designed for fitment with your specific vehicle.
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$930.07
McGaughy's Suspension Lowering Kits
McGaughy's Suspension is the industry leader in the lowering and drop kits. All McGaughy's suspension lowering kits are exclusively designed, tested, and test fit for each application. Their lowering kits are of the highest quality found in the industry today. Competitors have tried to copy McGaughy's patented spindles and components for years and were stopped in their tracks. Their only way around McGaughy's rock solid patents was to change their designs in a way that drastically and negatively affected their products.
( 237 )
$820.99
Yukon Gear & Axle Ring and Pinion Sets
Yukon Gear & Axle ring and pinion sets are strong but quiet performers. Designed to handle some of the harshest conditions, these sets utilize the latest design and manufacturing technologies to afford you a smooth running gear that's durable and easy to set up. Yukon ring and pinions are available in hundreds of size, ratio, and axle model options. Whether you're on the street, off-road, or at the track, you'll experience unrivaled power and gear performance. Order the model recommended for your application.
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$876.99
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$898.99
PowerStop Z17 Evolution Plus Stock Replacement Brake Kits with Calipers
PowerStop Z17 Evolution Plus stock replacement brake kits with calipers have everything you need for an easy, bolt-on solution for your daily driver. They include Z17 Evolution Plus ceramic pads, Autospecialty brake rotors, and non-coated replacement calipers, along with stainless steel hardware. If you need a complete, fast, and easy solution that meets original equipment standards, then PowerStop's Z17 Autospecialty brake kits with calipers are the ideal choice to refresh your braking power. (Some models may include rotors for only the front or only the rear.)
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$857.52
