This is a clearance listing. The item is brand - new, unused, comes with all pieces and hardware, and is in an open - box condition. Note that clearance items are non - returnable. The AEM 21 - 478WR Performance Cold Air Intake System boosts your vehicle's horsepower and torque. It replaces the restrictive factory air filter and intake housing. Specifically designed, tuned, and dyno - tested for certain Subaru WRX, WRX STI, Impreza WRX, and Impreza WRX STI models. Air enters through an oversized AEM Dryflow synthetic washable air filter, ensuring great air flow, filtration, and performance. The filter sits in the original air box and is shielded by a heat shield to lower intake air temperature and increase power. The intake tubing is made of mandrel - bent aluminum with a durable textured red powder - coated finish. It's compatible with the engine's factory emissions control devices, including the mass air flow sensor. The cylinder - shaped AEM Dryflow air filter uses oil - free synthetic media and can go up to 100,000 miles before cleaning (depending on driving). Installation is easy with common tools and it comes with AEM's Lifetime Limited Warranty. Some AEM air intakes may not be legal in California and states following its emission standards, while others are 50 - state legal. Check the 21 - 478WR vehicle applications for each vehicle's legal status. Part #: 21 - 478WR
Using this AEM cold air intake is straightforward. First, gather common tools you have at home. Then, replace your vehicle's old air filter and intake housing with this new system. Make sure all parts are properly connected. When it comes to maintenance, the AEM Dryflow air filter can last up to 100,000 miles before it needs cleaning. But this depends on how you drive. If you often drive in dusty areas, you might need to clean it earlier. To clean the filter, follow the instructions provided by AEM. Also, keep in mind that some models of this air intake may not be legal for use in California and other states with similar emission standards. So, before you install it, check the vehicle applications to make sure it's legal for your car.
