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AUDI A4 Parts and Accessories
Showing In Stock Items. Show All 111 Items.
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
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$599.95
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$699.93
PowerStop Z23 Evolution Sport Brake Upgrade Kits
PowerStop is on a mission to deliver an easy and affordable way for any driver to upgrade their brakes--no matter where or how they use their vehicle. Forget standard, off-the-shelf parts. PowerStop's Z23 Evolution Sport brake upgrade kits come with everything you need--pads, rotors, and premium stainless steel hardware for an easy, bolt-on upgrade for your daily-driver. Along with increased braking power, the carbon fiber ceramic brake pads feature a low-dust formula to keep those wheels looking great while you say goodbye to nasty brake dust. These pads combine with drilled and slotted rotors to ensure a cool, smooth ride that protects against rust and corrosion. Give your daily driver the easy and affordable performance upgrade it deserves with PowerStop Z23 Evolution Sport brake upgrade kits.
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$593.53
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$611.72
On Sale
XS Power Titan8 Lithium Batteries
XS Power Titan8 lithium batteries are designed for peak power. This Lithium Titanate Oxide (LTO) Series uses a very high-power lithium cell that is designed for very high-burst output (up to 100 times its capacity) as well as very high-charge current (30 to 60 times its capacity). This translates to a single 10Ah module that can support burst current up to 1,000 amps and can accept 300 amps of continuous charge current. The built in 2/0 bussing allows up to four positive and four negative hidden direct connections to each module without the need for any external exposed bussing, while still leaving two easily accessible top terminals and four series or parallel expansion terminals to easily build a bank of nearly any configuration from 12 V, 24 V, 36 V, or any configuration imaginable. Each module comes standard with a built-in balancing system and can be upgraded to include Bluetooth connectivity that allows remote cell monitoring, internal temperature sensing, battery health monitoring, and can be configured to send notifications to any tablet or smartphone when any user preset limit is met, including low voltage, over temperature, overcharge, etc. XS Power Titan8 lithium batteries are also offered in BCI direct fit models that are fully insulated with temperature monitoring built in that are suitable for use in the factory under hood position.
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$599.99
$539.99
MagnaFlow California Grade CARB Compliant Universal Catalytic Converters
MagnaFlow California Grade CARB Compliant universal catalytic converters help keep the check engine light off. They offer the right fit for a wide array of vehicles thanks to the adaptable universal design (cutting and welding is required). With highly corrosion-resistant, stainless steel construction, you can have confidence in the quality of these catalytic converters. They are designed to meet or exceed California Air Resource Board requirements and have undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states.
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$718.00
PowerStop Z23 Evolution Sport GEOMET Coated Brake Kits
PowerStop is on a mission to deliver an easy and affordable way for any driver to upgrade their brakes--no matter where or how they use their vehicle. PowerStop Z23 Evolution GEOMET coated rotor brake kits include Z23 brake pads, rotors, and stainless steel hardware; everything needed for an affordable, easy brake upgrade for drivers with European vehicles. The carbon fiber ceramic brake pads feature a low-dust formula to keep those wheels looking great while you say goodbye to nasty brake dust. These pads also have multi-layer rubberized shims that insulate noise for virtually silent braking. The high-carbon rotors are treated with a thin layer of genuine GEOMET 360 coating to protect against rust and corrosion without diminishing braking performance and are manufactured to original equipment specifications. If you're looking to refresh the look and braking performance for your European vehicle, Evolution GEOMET coated rotor brake kits are for you.
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$512.51
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$543.89
Injector Dynamics ID1050x Fuel Injectors
Injector Dynamics ID1050x fuel injectors are a built-to-spec motorsport injector, offering optimization of critical operating parameters important to you, the motorsport tuner. Built on the evolution of the ID1000 and X Series, these injectors are a drastic improvement over previous series from Injector Dynamics. Order the set recommended for your vehicle. Features include: * Requires only 8 V for consistent operation at 8 bar * Corrosion resistance makes them compatible with all automotive fuels * Compact bodies allow fitment in over 200 applications * Improved internal flow path—without sacrificing low flow performance * Stronger magnetic circuit offers stable operation up to 10 bar * Replaceable inlet filter extends service life
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$623.70
Fluidampr Harmonic Dampers
Using only three parts (a laser-welded sealed housing, an internal inertia ring, and highly viscous silicone fluid between the two), SFI-approved Fluidampr harmonic dampers can control all crankshaft vibration--not just a limited frequency range. As a result, you get reduced wear on the main bearings and timing gear, more stable valvetrain operation, and less chance of crank failure.
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$500.80
PowerStop Euro-Stop Brake Kits
PowerStop is on a mission to deliver an easy and affordable way for any driver to upgrade their brakes--no matter where or how they use their vehicle. PowerStop Euro-Stop brake kits are affordable solutions for owners of high-end European vehicles who prefer original equipment brakes. These brake pad and rotor kits are manufactured to original equipment specifications and come with everything you need, including electronic wear sensors and stainless steel hardware (where applicable), for an easy, bolt-on installation. The pads meet the strict ECE-R90 standards required throughout the European Union ensuring OE performance and quality, and the high-carbon rotors are treated with a thin layer of genuine GEOMET 360 coating to protect against rust and corrosion without diminishing braking performance. If you are looking to retain the original level of performance for your European vehicle but tired of the big price, Euro-Stop is the ideal choice.
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$591.64
Walker Ultra Direct-Fit Catalytic Converters
Walker Ultra Direct-Fit catalytic converters fit like OE, because the company makes original equipment! Besides the perfect fit, inside the Ultra catalytic converters are ceramic substrates with high-tech washcoat and the right loading of precious metals. The outside bodies are stainless steel for long life and durability. Catalytic converters are a vital part of your vehicle's emission control system; choose the fit, quality, and performance of a Walker Ultra catalytic converter. Order the replacement model designed for your vehicle application.
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$508.99
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$583.99
AP Exhaust Direct-Fit Catalytic Converters
AP Exhaust direct-fit catalytic converters will render your vehicle energy efficient and environmentally friendly. They're built with 409 stainless steel shell and neck construction for longer life, and feature AP's "Clean by Design" premium-grade ceramic substrates for maximum pollution reduction. Offering the most comprehensive coverage, they can provide direct-fit catalytic converters with lower emissions, long-term reliability, and an easier install. The growing concern for the environment means there is a growing need for quality emission control products. AP Exhaust direct-fit catalytic converters offer the quality, fit, and value to meet those concerns. Order the model designed for your vehicle application.
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$546.99
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$637.99
South Bend Clutch Stage 2 Endurance Clutch Kits
South Bend Clutch Stage 2 Endurance clutch kits are recommended for daily and street use with an emphasis on rally and endurance racing. An SFI-approved single-mass flywheel is recommended for racing climate applications in order to achieve optimal performance (flywheel not included). Order the clutch kit recommended for your vehicle application. Features include: * Designed for the racing environment * Pressure plate is precision-balanced for vibration-free operation at high-rpm * Pressure plate fulcrum is altered for a positive disengagement and a quick shift * Disc is engineered with a dual-damped design to provide accurate control when accelerating through corners * Hybrid friction material with a full face Feramic (sintered iron) lining on the flywheel side and a high metal content organic lining on the pressure plate side * Engagement is positive, yet buffered due to the high graphite content unique to Feramic facings
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$618.51
EBC BSD Sport Series Rotors
EBC GG15HC high-carbon blade rotors offer unbeatable performance for fast road and race use on hot hatches! These 100 percent British-made rotors feature high carbon and high silicone levels that deliver matchless performance under high braking loads and temperatures, as well as rotor vibration dampening that reduces braking noise. They also receive a silver corrosion finish that looks great and prevents corrosion. Bolt on the winning performance of GG15HC high-carbon blade rotors—from the EBC line of BSD Sport Series rotors.
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$536.78
LuK Clutch DMF Flywheels
The downsizing of modern passenger car engines enables reduced fuel consumption and CO2 emissions, but can also increase rotational irregularities and natural vibrations. Torsional vibrations transmitted to other components in the drivetrain diminishes comfort and may even lead to component damage, therefore effective vibration damping is essential. LuK dual mass flywheels (DMF) reliably dampen torsional vibrations in the powertrain and ensure high gearshift and driving comfort in all speed ranges. Unlike a conventional flywheel, DMFs consists of two masses which are mounted to rotate against each other. A damping system in the form of arc springs is integrated to almost completely absorb the torsional vibrations of the engine. Precisely matched to the respective vehicle, each LuK DMF enables low-speed driving and ensures lower fuel consumption, as well as reduced emissions. Order the proper size for your vehicle.
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$519.99
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$710.99
SPEC Stage 1 Clutch Kits
SPEC Stage 1 clutch kits are designed for street, drag race, drifting, road race, rally, pulling, and autocross use. They feature integrally molded carbon-Kevlar® based, high performance organic linings that offer smooth engagement and excellent life. These linings have an integrally bonded steel backing for strength under high clamp loads and temperatures. Hubs are double-sprung with spring cover reliefs for flexibility and heat-treated components for strength and durability. Nearly a thousand different kits are available for countless applications, from the 1940s and up. Additional features of SPEC Stage 1 clutch kits: * High-clamp pressure plate * Steel-backed and multi-compound woven organic material * High-torque sprung hub and disc assembly * Best for street and many track and off-road applications
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$647.10
EBC Stage 10 Kits GreenStuff Brake Pads and GD Rotors
If you desire a modest brake improvement for normal speeds on any SUV or light-duty truck, EBC Stage 10 GreenStuff brake pads and GD rotor kits are for you! You'll get everything you need with these quality GreenStuff kits, which include pads, GD rotors, and caliper lube. High-efficiency EBC brake pads are built with aramid fiber, fully shimmed, slotted, and chamfered—and feature the EBC patented break-in coating for fast pad seating after installation. Pads are matched with spot-drilled and wide aperture-slotted sport vented rotors for cooler brakes and a lifetime of perfect flat and parallel pad wear; they're finished with "thermic black" anti-rust coating. Wider aperture slots draw cool air under the braking area and remove dirt, dust, and debris faster. For significant improvement in braking over OE pads, order an EBC Stage 10 kit for your vehicle.
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$503.16
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$595.42
EBC Stage 2 Sport Disc Brake Kits
EBC Stage 2 Sport disc brake kits are sure to get your ride stopped more effectively than you ever imagined. They include a pair of EBC USR Series Sport GEOMET-coated, slotted brake rotors—and a set of EBC Greenstuff brake pads. The components are matched up together to help "slow your roll" the right way! These replacement or upgrade kits are available for fitment on thousands of applications from the 1960s and up.
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$506.49
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$630.39
Summit Bucks
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.
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$569.00
EBC Stage 12 Kits Redstuff Brake Pads and RK Rotors
Drive a muscle car or premium import and want better brakes at any speed? EBC Stage 12 kits with Redstuff brake pads and RK rotors make a great choice … and do it with less dust! These combo kits save you money rather than buying brake pads and rotors separately. The high-efficiency Redstuff brake pads are built with aramid fiber, enhanced with ceramic granules for greater performance; they're fully shimmed, slotted, and chamfered—and they feature the patented EBC break-in coating for fast pad seating and reduced brake fade. The premium OEM-style RK rotors are a direct fit OEM replacement with GEOMET anti-rust surface coating, fully balanced and runout-tested for smooth braking performance.
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$505.29
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$660.74
Sachs Stock Replacement Clutch Kits
If your clutch seems to be giving you the slip, Sachs Stock Replacement clutch kits are an affordable option for repair or replacement to help you restore your vehicle back to its proper operation. Sachs Stock Replacement clutch kit components are built to OEM specifications to offer the same fit, form, and function as the factory OE part for a safer, more comfortable drive. Choose the replacement clutch kit designed to fit your application needs.
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$561.99
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
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$563.99
PowerStop Z26 Street Warrior Brake Upgrade Kits
PowerStop is on a mission to deliver an easy and affordable way for any driver to upgrade their brakes--no matter where or how they use their vehicle. PowerStop Z26 Street Warrior brake upgrade kits are recommended for high performance, high-horsepower muscle and modified cars. These kits come with everything you need for an easy installation, including pads, rotors and stainless steel hardware. The drilled and slotted rotors and carbon fiber ceramic pads combine to provide shorter stops under the most demanding conditions. PowerStop's Z26 Street Warrior kits are affordable bolt-on upgrades that deliver the braking power you need to rein in all those ponies, and with their low-dust and noise-free formula, you'll spend less time cleaning your wheels and more time enjoying what matters most--the drive.
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$592.31
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$744.89
Standard Motor Engine Variable Timing Sprockets
Standard Motor engine variable timing sprockets will restore your vehicle's drivability. Designed to match OE performance, these SMP units are precision-machined to ensure accurate variable valve timing and correct rough idle. And, once installed, the cam phasers can help to reduce emissions and improve vehicle efficiency. Choose quality parts to get the job done right the first time; choose Standard Motor engine variable timing sprockets.
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$744.99
Rotiform R120 SPF Silver Machined Wheels
Rotiform R120 SPF silver machined wheels turn split 5-spokes into massive gumdrops for an incredible new take on classic style. These cast aluminum wheels are finished with a silver powdercoat; then, the faces of the spokes and outer lip are machined and sprayed with clearcoat. For a unique design that's sure to stand the test of time, buy Rotiform R120 SPF silver machined wheels.
Not Yet Reviewed
$504.00
Clearance
Body Parts Bumper Covers
If you're in search of quality OE replacement bumper covers for collision repair or your restoration project, check out these Body Parts reproductions! Made from premium materials, these are direct fit, easy-to-install bumper covers designed to replace old or damaged parts. Get your ride back onto the road, order the Body Parts bumper cover tailored for your specific vehicle. It'll look like the day it rolled off the assembly line.
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$564.99
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$687.99
