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2014 AUDI A4-QUATTRO Air & Fuel Delivery

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Results 1 - 22 of 22

Turbosmart Kompact Dual Port Blow-Off Valves

Turbosmart Kompact dual port blow-off valves offer high performance, OEM fitment, versatility, and affordability—in other words, everything you need! These BOVs feature dual ports that vent into both the atmosphere and the air intake, reducing turbo lag and eliminating cavitation. Turbosmart Kompact dual port blow-off valves are designed to be bolt-on replacements for plastic factory Bosch or Denso units. They use sequential timing to allow for quieter operation during normal driving, while still providing the benefits of a vent-to-atmosphere type BOV under race conditions. They are easily converted into full atmospheric or full bypass units by using the included port blanking plug.

4.52 out of 5 stars ( 27 )

$303.95

Bosch Fuel Injectors

Clogged or leaking fuel injectors can have a ripple effect on your vehicle, decrease performance and economy. When it's time to remove a faulty injector, Bosch offers dozens of models designed as OE stock replacements. Choose the fuel injectors recommended for your gasoline or diesel application.

4.77 out of 5 stars ( 13 )

$54.99

Hitachi Fuel Injection Pumps

Hitachi offers direct injection high pressure mechanical fuel pumps for a wide range of vehicles, particularly import models. These stock replacements are built to OEM specifications for performance and longevity. Order the fuel injection pump recommended for fitment on your car or truck.

5.0 out of 5 stars ( 1 )

$277.99

APR Throttle Response Boosters

The APR Throttle Response Booster instantly transforms the way your vehicle feels by customizing how quickly your throttle or accelerator pedal works. Simply plug it in and either use the wireless controller or smart phone app to set or customize how the pedal feels. Most people don't like the way their throttle pedal feels; and while tuning can help eliminate lag, everyone has a different opinion about how it should feel. This throttle booster device lets you set it exactly the way you want and allows you to quickly switch between profiles. Set it to stock, sport modes, extreme modes, and eco modes with ease. Best of all, it's a quick plug-and-play device that can be removed at any time. Additional details: * Improves throttle response and transforms the feel of the vehicle * Multiple switchable profiles, including various sport modes, eco modes, and custom maps * Custom throttle mapping allows you to perfectly tune your throttle pedal * Thin and classy wireless controller * Bluetooth iOS and Android mobile app * No clunky boxes, wires, or controllers like other devices * Connects to the throttle harness, leaving your OBDII port free * Quick and easy plug-and-play design that is removable without a trace * Works on gas, diesel, alternative fuel, and electric vehicles

Not Yet Reviewed

$274.95

Turbosmart Kompact Shortie Plumb Back Blow-Off Valves

Turbosmart Shortie Kompact Series blow-off valves are specifically designed to suit aftermarket and upgraded factory turbos. Unlike standard plastic valves that use single-layer diaphragms (which are known to crack under increased boost), the new Kompact valves use an O-ring sealed piston; coupled with their billet aluminum construction, this allows them to support over 30 psi. These blow-off valves are available as universal models or as a bolt-on replacement for the factory valve on all BorgWarner EFR, KKK, and most Eco-boost turbos. The Kompact Shortie Plumb Back provides better boost response and greater boost handling capability.

Not Yet Reviewed

$267.95

Go Fast Bits VTA Performance Blow-Off Valves

Go Fast Bits VTAs are a performance blow-off valve solution for a wide range of foreign and domestic cars and trucks with an electronic factory diverter valve. If you want sound with your performance (or performance with your sound!), these VTAs offer just that! By combining the proven performance benefits of GFB's ground-breaking DV+ with atmosphere venting, the VTA delivers an aggressive blow-off sound, improved throttle response and boost recovery, as well as superior boost holding and reliability in extreme conditions. The VTA shares the successful DV+ design philosophy: "Keep what works, replace what doesn't." This means Go Fast Bits retained ECU control and the solenoid from the factory diverter to ensure the fastest possible response time—without the added and unnecessary cost of replacing the solenoid like some brands do. The weak part of the factory diverter has always been the plastic valve mechanism; this is the part GFB has replaced. The VTA features CNC-machined billet components that last a lifetime, and the valve operation method has been updated for better performance. The factory diverter valve can only operate in two states: open or closed. When it opens fully at low boost or during a partial throttle lift mid-corner, it causes increased lag and a noticeably non-linear boost transition. GFB pioneered the use of "pilot operation" in the DV+, which works by re-purposing the factory solenoid to control the pressure behind the piston rather than the piston itself. This allows the solenoid stroke to be much shorter, speeding up the response time and increasing the actuation force. More importantly, it allows the piston to open and close progressively in response to the amount of boost pressure present, which smooths boost transitions and reduces the lag caused by the factory diverter valve. It's this design philosophy that makes the VTA not only the best performing blow-off valve solution, but also the best value on the market. Order the VTA Performance blow-off valve model recommended for your vehicle. Key features: * TMS Technology for faster boost recovery on gear shift and during throttle modulation * Improved boost holding ability * Atmosphere venting for blow-off sound * Retains ECU control * Simple, direct bolt-on kits include everything you need to install

5.0 out of 5 stars ( 5 )

$198.00

On Sale

APR Replacement Air Intake Air Filters

APR replacement air filters are designed for their intake systems, meaning when you need a new filter, APR replacements should be your first and only choice. They feature high-quality construction with lightly oiled pleated cotton gauze. They will provide the perfect fit, along with the filtering performance and unrestricted airflow to maintain optimal operation of your APR intake system.

Not Yet Reviewed

$54.95


$30.22

$79.95

Rein Automotive OE Quality Turbocharger Oil Feed Line Banjo Bolts

Rein Automotive OE Quality turbocharger oil feed line banjo bolts are made with premium materials and designed and manufactured to be direct-fit replacements. Constructed to strict engineering standards and tight tolerances to ensure proper sealing, Rein banjo bolts replace originals with the proper fit and function. Select the ones needed for your vehicle.

Not Yet Reviewed

$10.99

$25.99

Hengst Air Filters

Air filters are essential for the safe and efficient operation of gas and diesel engines. The engines, depending on performance level, suck up a lot of air per hour along with dust and other foreign particles which not only affect engine performance, but can also damage the entire engine and its electronic components. Hengst air filters protect engines and electronic components by cleaning the intake air efficiently and reliably. They permanently remove foreign particles from intake air and maintain safe and long-lasting engine performance. Plus, Hengst air filters ensure optimum fuel-air mixture levels, thus ensuring the best possible combustion. Allow your engine to breathe; clean the air for your engine with a Hengst air filter. Choose the one designed for your vehicle.

4.43 out of 5 stars ( 7 )

$14.99

Fram Extra Guard Air Filters

Fram Extra Guard air filters help keep damaging particles from entering your engine and causing increased wear. They feature a dry paper element with a standard screen for durability. These air filters are designed to keep your engine running at peak performance under any driving conditions. When you're ready to replace your present air filter, order the Fram Extra Guard air filter designed for your year, make, and model.

4.49 out of 5 stars ( 81 )

$27.99

Standard Motor TechSmart Throttle Bodies

Restore proper engine function with Standard Motor TechSmart throttle bodies. These electronic assemblies will maintain the correct volume of airflow into your engine. Each of these units features a butterfly valve, which is electronically controlled by the ECU to precisely open and close for the correct regulation of the fuel/air mixture. Many feature cast aluminum housings with an exact fit for an easy installation. Standard Motor TechSmart throttle bodies offer durable, reliable performance that have made Standard Motor Products an industry leader for more than 95 years.

4.2 out of 5 stars ( 10 )

$186.99

Delphi Fuel Pump Module Assemblies

Delphi fuel pump module assemblies are nickel plated with all-steel internal components. They feature internal guide rod springs and external rubber feet for enhanced stability and reduced noise from vibration. These fuel pumps have little flow or pressure variation in hot fuel situations. Delphi fuel pump modules are designed to be OE replacements.

4.51 out of 5 stars ( 251 )

$746.99

$1,045.99

APR Intercooler Systems

APR intercooler systems result in repeatable performance—even in the most demanding of situations. These massive front-mounted upgrades dramatically reduce intake air temperature (IAT), minimize heat soak, and provide increased performance in easy-to-install, direct bolt-on designs. The superior effectiveness and performance of APR systems is focused around core selection, end tank design, and specific install location for each application. Balancing all the necessary characteristics, APR's engineers perfected units with exceptional cooling and lowered pressure loss across the core, while maintaining critical airflow to components behind the system—delivering maximum performance and far exceeding the capabilities of factory intercoolers. Features may include: * Aluminum construction * Large bar-and-plate design with densely packed staggered and louvered fins * Smooth cast aluminum end tanks engineered for low turbulence/restriction and maximum flow * Pressure tested to prevent power robbing boost leaks * Full directions and APR world-renowned customer support * Some systems may include CNC-bent and TIG-welded mounting brackets, high-quality multi-ply silicone inlet and outlet hoses, T-bolt clamps, and billet MAP sensor housings

Not Yet Reviewed

$1,199.95

Standard Motor Vapor Canister Components

Rough idle, hard starting, and the check engine light--these are a few symptoms that can alert the driver that a potential EVAP problem has occurred. Standard Motor vapor canister components featurie industrial-grade materials for robust performance, they are manufactured for prolonged life and superior performance. As a global manufacturer of emission components, Standard Motor maintains complete quality control through the manufacturing process from start to finish.

4.47 out of 5 stars ( 15 )

$114.99

Dorman Turbocharger Head Units

Dorman turbochargers head units restore drivability, as well as engine power and/or efficiency. These turbocharger and gasket kits are offer as direct replacements for the best possible fit and function in a wide number of applications. They are quality engineered from durable materials to eliminate grinding, whining, and other noise-related issues you would experience due to a faulty turbocharger. Dorman turbocharger and gasket kits include installation components, and on-vehicle testing was conducted to ensure trouble-free operation in your vehicle.

4.2 out of 5 stars ( 20 )

$1,512.99

Body Parts Intercoolers

Body Parts intercoolers are high-quality, direct-fit replacements for a variety of applications. The intercoolers are built to provide the performance, durability, and service life you expect from an OEM replacement. Order the model recommended for your vehicle and engine type.

Not Yet Reviewed

$117.99

On Sale

APR Carbon Fiber Intake Systems

APR carbon fiber intake systems let your engine breathe! The stunning carbon fiber design rejects power-robbing heat from your engine bay and efficiently delivers an unrestrictive path for cold, dense air fed from outside the engine bay. These systems use high-flow filters, providing excellent filtration without restrictions—prudently keeping the engine clean and optimizing power delivery. They dramatically outflow your stock intake, sharpening throttle response and lessening strain on the turbocharger. APR carbon fiber intake systems typically install in minutes, look fantastic, instantly deliver a sporty engine note, and are recommended for all stages of performance.

Not Yet Reviewed

$699.95

GMB Direct Injection High-Pressure Fuel Pumps

Gasoline direct injection (GDI) engines are designed to inject highly pressurized fuel directly into each cylinder's combustion chamber, providing better emissions, improved fuel economy, and more power … they also need more highly pressurized fuel. GMB direct injection high-pressure fuel pumps are advanced mechanically driven pumps that will reliably create a high enough pressure to fully atomize the fuel, providing your GDI engine what it needs to perform correctly. GMB GDI pumps are built from premium materials, tested, and manufactured to meet or exceed OEM specifications. GMB offers several models that are compatible with over 12 million vehicles! Choose the one designed for your vehicle.

Not Yet Reviewed

$539.99

On Sale

aFe Pro 5R Air Filter Elements

With 100 percent polyurethane top and bottom construction, these oiled, high-flow aFe Pro 5R air filter elements outperform stock paper filters—while improving horsepower and torque. The five layers of progressively finer mesh cotton gauze give a whole new meaning to incredible airflow. These filter elements are washable and reusable and are available in a variety of sizes and styles, providing incredible dust-holding capacity. Order the aFe Pro 5R air filter element model that is best suited for your application needs.

4.54 out of 5 stars ( 78 )

$88.00


$74.80

On Sale

aFe Pro Dry S Air Filter Elements

If your vehicle spends most of its time on the street, and you desire to maximize airflow, then aFe Pro Dry S air filter elements are an excellent choice. These synthetic oil-less filters feature three layers of progressive media for optimum filtration and flow even when dirty. The filters bump seals eliminate the need for sealants or gaskets since they conform to the filter housings, and always return to their original form. Full 360 degree urethane frames allow proper OE fitment and strength. The elements are available in a wide variety of styles and sizes for fitment on countless applications. For more flow and less mess, order an aFe Pro Dry S air filter element.

4.66 out of 5 stars ( 121 )

$93.00


$79.05

Delphi Fuel Injection Pumps

Delphi fuel injection pumps feed your gas or diesel engine. Precisely delivered fuel keeps your engine running smoothly and provides the right amount of fuel to gain power. These Delphi pumps are built from quality materials and are validated by Delphi to ensure the best performance in your rig. Give your cylinders equal shots of fuel for better performance with Delphi fuel injection pumps.

Not Yet Reviewed

$308.99

Denso Air Filter Elements

With engineering and production facilities all over the globe, Denso is a leading supplier to the world's automakers. That engineering leadership includes air filter technology, which is shared with the aftermarket in the full line of Denso First Time Fit replacement air filters. Denso air filter elements employ three successive layers of filtration media to trap a much wider range of particulate sizes than plain, single-layer media. Precision-molded seals eliminate bypass and ensure a factory-quality fit in the air cleaner housing, making installation a breeze. The air filter is the last line of defense against the harmful airborne abrasives that have been proven to wear out engines before their time. With OE-quality engineering and materials, Denso air filters supply peace of mind. Additional features and benefits of Denso air filter elements include: * Course layer catches large dirt and dust particles * Intermediate layer catches medium-size dirt and dust particles * Fine layer catches fine particles of dirt and dust * Easy installation with a factory-quality fit * Prevents abrasive particulate matter from entering the engine reducing engine wear * Replacing a clogged air filter can improve engine performance

4.6 out of 5 stars ( 15 )

$23.99

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