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2004 CHEVROLET SILVERADO-2500-HD Air & Fuel Delivery

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FASS Fuel Systems Titanium Signature Series Fuel/Air Separation Systems

FASS Fuel Systems Titanium Signature Series fuel/air separation systems are a beneficial upgrade for your diesel engine. Titanium systems feature compact designs, powerful motors for improved fuel flow, and advanced filtration that's far superior to your factory fuel filter. Their diesel fuel lift pumps are engineered to be top performing, reliable, long-lasting units—and are backed by a limited lifetime warranty on all light-duty diesel applications. The Signature Series also features FASS revolutionary Whisper Technology that effectively and drastically reduces the sound levels of these diesel systems to a "whisper," while at the same time increasing fuel flow rates. Whether stock or highly modified, FASS Titanium Signature Series diesel fuel systems are available to handle your engine's horsepower. Features and benefits: * Systems available with flow rates up to 290 gph * Advanced filtration removes water, air, vapor, and debris with a filtration rating of 2 micron * Smoother engine idle * Protects and extends the life of your injectors * Whisper Technology (FWT)—reduces noise levels without reducing flow rates * Performance Radius Cuts (PRC)—advanced machining technique creates smooth cuts within aluminum housing * Improved fuel volume delivery * Mass Flow Return (MFR)—technology used to continually "polish" your fuel by keeping positive pressure on fuel being delivered to your engine, guaranteeing the cleanest fuel possible. Also prevents cavitation, along with galling and scoring. * Improved cold weather starts * Decreases carbon monoxide and carbon dioxide emissions * Easier bolt-on bracket mounts do not require any drilling or welding to mount new pump * 1/2 in. fuel lines and ports * Fuel mileage improvement * 30,000 mile filter life expectancy

4.64 out of 5 stars ( 58 )

$689.00

$729.00

Painless Performance Fuel Injection Harnesses

For maximum power with exceptional drivability, transplant the power of fuel injection into your vehicle with Painless Performance fuel injection harnesses. All kits include straightforward instructions and TXL high-temperature, color-coded, and labeled wire for ease of installation. All fuel injection harnesses are 100 percent quality-tested on OmniScanners to ensure the viability of the circuits. Harnesses for both GM and Ford applications are available and they use genuine original equipment connectors for trouble-free installation and operation.

4.48 out of 5 stars ( 94 )

$137.99

$725.99

ACDelco GM Genuine Parts Fuel Injection Throttle Bodies

ACDelco GM Genuine Parts fuel injection throttle bodies are GM-recommended replacements for your vehicle's original component. It is located on the intake manifold, and contains the throttle plate(s) that control the air entering the engine. The throttle body also houses the fuel injector(s) on Throttle Body Injection (TBI) or Central Fuel Injection (CFI) systems. These true OE fuel injection throttle bodies have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

4.85 out of 5 stars ( 39 )

$165.99

Top Street Performance Standalone Fuel Injection Wiring Harnesses

An LS engine swap is a no-brainer when it comes to adding some affordable horsepower to a project car. Unfortunately, any swap comes with its share of headaches, including wiring—and that's where Top Street Performance standalone fuel injection wiring harnesses come in. TSP offers three harnesses for drive-by-wire/drive-by-cable applications and they include a fuse block and all the connectors for a headache-free install. Order the harness recommended for your system.

Not Yet Reviewed

$444.44

Earl's Performance LS Steam Vent Kits

Earl's Performance LS steam vent kits eliminate trapped air and steam from your engine to prevent hot spots and overheating. They offer a selection of these LS power plumbing kits, with the appropriate braided stainless steel Speed Flex hose with hose ends that make installation easier and much more attractive than OEM hard lines. Plus, they provide more flexibility when you're using aftermarket intakes and other accessories on performance vehicles. The kits are available in front and 4-corner plumbing options, with adjustable anodized aluminum steam vent adapters and/or distribution blocks. Plumb your LS for performance with Earl's steam vent kits.

4.6 out of 5 stars ( 5 )

$299.95

$349.95

S&B Filters Fuel Tanks

S&B Filters fuel tanks maximize the space under your diesel truck and empower you to fly by more gas stations like a compact, fuel-efficient car. The folks at S&B know even lifted trucks often sacrifice clearance for larger holds. That's why they design their tanks with a contour around the driveshaft area, helping you maximize clearance. A transfer pump fitting allows you to pull fuel from your now larger tank for equipment—saving valuable space in your truck's bed. Spend less time at the pump and more time driving with the S&B high-capacity replacement fuel tank designed to fit your vehicle. Features, items, and specs: * Brass vent and rollover vent valve * Included baffles cut down on fuel sloshing * Integrated fuel sump for aftermarket fuel pumps * Integrated OEM-style fitting for sending unit installation ease * Front cradle support design (instead of a band that wraps under) to help avoid band debris damage and failure where it's most likely to occur * Front support skid plate on some models * No modifications necessary for installation

4.2 out of 5 stars ( 5 )

$1,349.00

Spectre Performance Cold Air Intake Kits

Spectre Performance cold air intake kits provide better acceleration and fuel economy for your truck or SUV. They're designed to replace your factory air filter and air box assembly, eliminating the restriction as they smooth and straighten airflow. The high-flow design of these intakes enables your engine to breathe in a larger volume of air, resulting in more usable power throughout the engine's entire rpm range. Hundreds of models are available, with various tube and filter options. Choose the kit tailored for fitment and performance on your make/model application.

4.35 out of 5 stars ( 831 )

$199.99

Standard Motor Fuel Injectors

Standard Motor Products fuel injectors help you attain maximum fuel efficiency and power from your engine. Properly operating injectors are essential components for enabling your vehicle to run flawlessly. These OEM stock replacements are available for hundreds of specific applications. Don't drive with faulty fuel delivery. Update worn or malfunctioning fuel injectors with reliable models from Standard Motor Products.

4.68 out of 5 stars ( 247 )

$79.99

$599.99

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 ( 67 )

$599.00

$1,689.00

Volant MaxFlow 5 Closed Box Air Intake Kits

Eliminate your restrictive factory air box, filter, and intake tube. In their place, install one of the Volant MaxFlow 5 closed box air intake kits. They house a MaxFlow 5 oiled cotton gauze air filter that is cleanable and reusable. As an enclosed system, the air intake keeps your engine quiet at cruising speeds, but still allows it to roar to life when you stomp on the gas. This design protects the filter and ensures that colder air is pulled in from the fender instead of the engine bay—resulting in more horsepower and torque. These intake units are factory-tuned, and everything you need for installation is included. Volant MaxFlow 5 air intake kits are available for fitment on a variety of makes and models.

4.23 out of 5 stars ( 171 )

$341.90

$502.90

Airaid Modular Intake Tubes

Airaid modular intake tubes optimize airflow to the engine by replacing inefficient originals. Factory tubes often have accordion-shaped walls, sound-canceling baffles, and undersized tube diameters that hurt airflow. The Airaid modular intake tubes help straighten and improve airflow to the engine, while also offering the best location for your mass air sensor. This design provides better throttle response, additional horsepower, and better fuel economy. These tubes are constructed from cross-linked, high-density polyethylene for strength and resistance to heat transfer. Airaid modular intake tubes are direct replacements for factory models, accommodating all sensors and fittings that attach to the factory tube. These tubes also work with the factory throttle body and intake box, and they include all necessary couplers and clamps for installation.

4.59 out of 5 stars ( 165 )

$153.99

JET Powr-Flo Throttle Bodies

JET Powr-Flo throttle bodies are direct replacements for factory units, and can be used to replace a worn-out throttle body or to upgrade your existing throttle body. They provide increased airflow for improved throttle response by taking advantage of JET's unique inlet design, and they include all new pre-installed calibrated electronics to allow for a simple "remove and replace" installation. JET Powr-Flo throttle bodies increase air velocity to the intake manifold, improving throttle reaction and provide horsepower throughout the entire rpm range. Order the JET Powr-Flo throttle body compatible with your vehicle.

4.5 out of 5 stars ( 108 )

$389.96

Delphi Fuel Injectors

Delphi fuel injectors are engineered with an accurate, controlled spray pattern that reduces emissions and improves cold-start capabilities. These replacement injectors have a recessed fuel exit and no internal seal rings—in order to minimize leakage and possible puddling. Delphi fuel injectors are durable, dependable, and offered for a wide variety of applications. Order the OEM stock replacements designed for your vehicle.

4.56 out of 5 stars ( 9 )

$99.99

$312.99

ACDelco Electric Fuel Pumps

When you're in need of an electric fuel pump, all you need to know is ACDelco. That's because ACDelco is an industry leader in the fuel pump market, delivering quickly available, quality components for most vehicles on the road. Simply put, you can rely on ACDelco's full line of electric fuel pumps. They have built their reputation on quality that you can believe in. ACDelco electric fuel pumps are manufactured in ISO-9001 and QS-9000 registered facilities with quality control systems that help ensure that their fuel pumps will consistently satisfy your requirements. Order the replacement model designed for your vehicle. All ACDelco electric fuel pumps are engineered to provide: * Outstanding fuel-delivery performance * Quick engine starts and a continuous fuel supply * Long-lasting durability * Easy installation and proper fit

4.69 out of 5 stars ( 121 )

$227.99

Fleece Performance Cheetah FMW VNT Turbochargers

Fleece Performance offers Cheetah FMW VNT turbochargers for a variety of diesel trucks to enhance your driving experience. These drop-in replacements come with a Fleece-engineered 63mm FMW compressor wheel and high-flow Cheetah turbine wheel. You'll enjoy the spool-up and throttle response of a small turbo and still get the big top-end power you're looking for. Rated at up to 650 rear wheel horsepower (depending on model), this is the ultimate combination for dual-purpose applications. If you're towing during the week and sled pulling on the weekend, the 63mm FMW VNT Cheetah is just the ticket. Order the turbo model recommended for your vehicle. Additional details: * Stock appearing: Uses the stock housings with updated internals. This allows you to keep all factory systems intact, yet enables you to safely run 40 psi of boost. No aftermarket components or modifications needed for installation. * Proven Technology: Built with genuine Garrett Turbocharger parts. They feature upgraded shaft bearings and 360 degree thrust bearings. * Powerful Yet Responsive: Turbochargers spool like stock, thanks to the variable nozzle technology (VNT) which allows the turbo to act smaller upon spool-up and then open up to flow more exhaust on the top end. * Exclusive FMW wheel technology: – Forged milled wheels – Faster spool-up – Increased throttle response – Broader torque curve

5.0 out of 5 stars ( 2 )

$2,599.00

ICT Billet Fuel Injector Spacers

ICT fuel injector spacers adapt shorter LS injectors into taller LS intake manifolds and fuel rails. Manufactured from aerospace-grade billet aluminum, the spacers are available in multiple choices to add length to your fuel injectors. ICT Billet spacer sets also include O-rings. Choose the parts designed for your specific application.

4.3 out of 5 stars ( 27 )

$58.99

Pacific Performance Engineering Diesel Fuel Lift Pumps

Pacific Performance Engineering diesel fuel lift pumps are a key component in a reliable fuel system. Rather than depending on the OEM CP3 to pull fuel from the tank, the PPE diesel fuel lift pumps push fuel through the lines and filter to eliminate the possibility of air being drawn into the system, collapsed hoses and fuel restrictions from occurring. These fuel lift pump kits include pump, mounting bracket, dual 12 V fuel pump relays and a wiring diagram.

3.5 out of 5 stars ( 10 )

$179.99

S&B Filters Dry Filter Cold Air Intake Kits

Have you always wanted a cold air intake with a disposable filter--without sacrificing performance? S&B Filters dry filter cold air intake kits offer airflow comparable to their cotton filters with the same great protection. They typically last for 15,000 miles of highway driving and you can extend the life of the filter by blowing it out with compressed air (up to three times). Your rig will not only gain performance, but also a sporty high-tech appearance under the hood. In addition, the filters and couplers are made with silicone rubber, not urethane, to help ensure they won't degrade or crack and can resist temperatures as high as 400 degrees F. These intake kits are simple to install, and the great looking signature clear lid allows visual inspection of your filter at all times. Remember, there are good air intakes … and then there are the better intakes--demand the better; choose the efficiency and style of S&B Filters cold air intake kits. Features include: * Helps balance air/fuel ratios to improve gas mileage * Specially-crafted cross-linked intake tube minimizes restriction * Custom air box keeps loose dirt and turbulent underhood air out of your intake * Custom-made for your specific year, make, and model * Easy-to-use installation instructions and illustrations * With the included mounting hardware, replaces your stock tract in 30 minutes or less

4.7 out of 5 stars ( 57 )

$349.00

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

$816.00

Summit Racing™ Diesel Fuel Injectors

Summit Racing offers diesel fuel injectors for a wide range of vehicle and engine applications, from the 1990s and up. These OE-quality replacements help you obtain maximum fuel efficiency and power from your diesel engine. Order the model recommended for your vehicle.

3.88 out of 5 stars ( 16 )

$212.99

$267.99

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

4.0 out of 5 stars ( 3 )

$857.57

$1,634.76

ACDelco Gold Fuel Filters

ACDelco Gold fuel filters are high-quality replacements for many vehicles on the road today. These filters help prevent fuel contaminates, such as dirt and rust particles, from entering the fuel delivery subsystem--and help keep the engine running properly. Gold fuel filters are manufactured to meet your expectations for fit and performance. Order the model recommended for your application.

4.59 out of 5 stars ( 49 )

$58.99

UREMCO Remanufactured Fuel Injectors

UREMCO remanufactured fuel injectors work like new! How so? United Remanufacturing uses the best quality cores and fully cleans the injector bodies, removing dirt, carbon deposits, and grease. Plus, they replace all O-rings, damaged pintles, and filter baskets. These fuel injectors are stringently monitored, inspected, and tested to ensure that they meet or exceed all OEM specifications for optimal performance. UREMCO builds fuel injectors to fit many makes and models, and each and every one ensures consistent spray patterns with dependability, wear resistance, and value. Replace your fuel injectors with like-new remanufactured fuel injectors from United Remanufacturing Company.

3.86 out of 5 stars ( 73 )

$30.99

On Sale

Holley Electric In-Tank Fuel Pumps

Holley electric in-tank fuel pumps provide the extra fuel required after completing other engine modifications, such as adding performance camshafts, headers, larger injectors, and so on. They use a proven gerotor-type pump and are compact enough to fit existing hanger assemblies. They're also designed for easy installation and come complete with instructions and all necessary parts, including a new strainer-type fuel filter. Dozens of models and options are available; order the fuel pump recommended for your vehicle.

4.45 out of 5 stars ( 11 )

$649.95

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