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AUDI A4 Parts and Accessories

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Results 1 - 7 of 7

Borla S-Type Cat-Back Exhaust Systems

Borla S-type cat-back exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower and produce a more aggressive sound and higher flow. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive Borla Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium 300-Series austenitic stainless steel, superior to T-400 Series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow and power, and precision computer-controlled CNC manufacturing ensures an accurate fit. It's just what you'd expect from the world's most experienced (and most winning) exhaust brand.

4.8 out of 5 stars ( 929 )

$1,242.99

ST Suspensions ST Coilover Kits

ST coilover kits are precision engineered and road tested to the highest standards. The threaded shock bodies allow you to customize the vehicle's ride height to the maximum, without compromising safety or functionality. The ST coilovers will give your ride superior handling and better braking performance. Order the kit best suited to fit your application.

Not Yet Reviewed

$1,089.00

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

$1,399.95

aFe Mach Force XP Exhaust Systems

aFe Mach Force XP exhaust systems are constructed of mandrel-bent stainless steel and come complete with free-flowing muffler(s), OE-style bayonet hangers, flanges, and band clamps, plus all hardware necessary for a hassle-free installation. Offered in single, dual, or quad muffler configurations, their smooth curves and large diameter tubes help reduce restriction and keep exhaust gas flowing smoothly for increased horsepower and torque. Available in cat-back, axle-back, and downpipe-back designs, almost all Mach Force XP exhausts are direct bolt-on systems that require no cutting or drilling and include all necessary hardware for a hassle-free installation. Most also include wrinkle-black powdercoated or polished 304 stainless steel tip(s) with a laser-cut stainless steel aFe power badge. Select models have carbon fiber tips with CNC-machined laser-etched inserts. aFe Mach Force XP exhaust systems are an ideal combination of performance, fit, and value. Additional features include: * Fit a variety of light trucks and cars, including European models * Available with 409 or 304 stainless tubing (varies by model) * "Stepped design" models increase exhaust velocity creating a broader torque curve throughout the rpm range * Straight-through, free-flowing stainless steel mufflers absorb high-pitch tones producing powerful sound * Leak-free 360-degree sealing * Stable pipe location in high-vibration and high-heat conditions * Bayonet tips hold hanger bushings in place for an OE-style fit * Several versions convert OE single exhaust to dual exhausts * Where applicable, incorporates an exhaust valve that uses the OE exhaust valve motor (not included) to regulate exhaust flow * Some systems use a unique resonance chamber to replace the OE muffler; produces a weight savings of up to 15 lbs. * Hi-Tuck design of specific models provide extra ground clearance when using an aftermarket suspension kit Note: Some aFe Mach Force XP systems are "Race Only" products solely for competition use. Their use is limited to closed-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state, and federal laws.

4.44 out of 5 stars ( 36 )

$1,006.95

$1,505.70

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.

4.49 out of 5 stars ( 317 )

$1,120.99

Manufacturer Rebate

MagnaFlow Direct-Fit Catalytic Converters

MagnaFlow direct-fit catalytic converters are designed for easy bolt-on installation for the professional installer. Welding, cutting, and tube-bending equipment are not required. These cats feature a ribbed body that minimizes expansion and distortion when the converters heat up. The ribs form a channel that protects the cushioning mat from direct exposure to exhaust gases, and they hold the ceramic catalyst in proper alignment. MagnaFlow converters use a monolithic honeycomb catalyst; the ceramic coating is designed for maximum flow and surface area, and the coating method is strictly controlled to maintain exact specifications. Improper coating could result in flow restrictions or an emissions test failure. These converters are designed to exact OE specifications and are available for the most popular vehicle makes and models.

4.07 out of 5 stars ( 440 )

$1,007.00

$1,316.00

Bilstein B14 PSS Suspension Kits

Bilstein B14 PSS suspension kits feature ride height adjustability in an OE quality, direct fit package. These kits offer monotube performance dampers with matched springs that are tuned for each specific application. The threaded body design will give you the flexibility to find the perfect ride height setting for your intended use while providing unsurpassed protection against the harshest road elements. B14 PSS suspension kits are made in Germany and feature technology tested on the famed Nürburgring.

4.75 out of 5 stars ( 4 )

$1,249.00

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