The AEM 21-750 Cold Air Intake System produces torque and horsepower gains by replacing your vehicle's restrictive factory air intake housing and air filter.
Designed, tuned, and dyno-tested, this air intake system fits specific Audi A4 and A5 models.
Air enters the system through an oversized AEM Dryflow synthetic washable air filter for outstanding filtration, performance, and air flow.
Located in the original air box position, the air filter can optionally be protected by an AEM embossed heat shield designed to reduce intake air temperature and increase horsepower.
Developed to accommodate the engine's factory emissions control devices, including the mass air flow sensor, the tapered cylinder shaped AEM Dryflow air filter is made from an oil-free, synthetic filter media that can be used for up to 100,000 miles before cleaning is needed (depending on driving conditions).
The air intake system is easy to install with commonly available tools and is backed by AEM's Lifetime Limited Warranty.
Some AEM air intakes are not legal for sale or use in California and other states adopting California emission standards, while others are 50 state legal.
View the AEM 21-750 vehicle applications to determine the legal status for each vehicle.
