This is a clearance listing. The item comes with all parts and hardware, is unused, and in new condition, though it's an open - box product. 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. Designed, tuned, and dyno - tested for specific Subaru models like WRX, WRX STI, Impreza WRX, and Impreza WRX STI. Air enters via 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 red powder - coated finish. It's designed to work with the engine's factory emissions control devices. The cylinder - shaped AEM Dryflow filter is oil - free and synthetic, lasting up to 100,000 miles before cleaning (depending on driving conditions). Installation is easy with common tools, and it comes with AEM's Lifetime Limited Warranty. Some AEM air intakes aren't 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 simple. First, make sure you have the common tools required for installation. Then, carefully replace your vehicle's factory air filter and air intake housing with this system. Just follow the included instructions and you'll have it up and running in no time. As for notes, remember that this is a clearance item, so it's non - returnable. Also, check the legal status for your vehicle based on the 21 - 478WR vehicle applications. When it comes to maintenance, the AEM Dryflow air filter is great. It can go up to 100,000 miles before needing a clean, but this depends on how you drive. If you notice a drop in performance or dirty air flow, it's time to clean the filter. To clean it, just follow the cleaning instructions provided by AEM. Keep your vehicle in top shape with this AEM cold air intake and follow these tips for the best results.
