AEM Wrinkle Red Cold Air Intake Subaru WRX / STI 2008-2014

The AEM 21 - 478WR Performance Cold Air Intake System is a game - changer for your Subaru. It boosts horsepower and torque by swapping out the restrictive factory air filter and intake housing. This system is precisely designed, tuned, and dyno - tested to fit specific Subaru WRX, WRX STI, Impreza WRX, and Impreza WRX STI models. Air rushes in through an oversized AEM Dryflow synthetic washable air filter, ensuring excellent air flow, top - notch filtration, and high - performance. The filter sits in the original air box and is shielded by a heat shield that lowers intake air temperature and increases power. The intake tubing is made of mandrel - bent aluminum with a tough, textured red powder - coated finish. It's engineered to work with the engine's factory emissions control devices, including the mass air flow sensor. The cylinder - shaped AEM Dryflow air filter uses an oil - free, synthetic filter media that can last up to 100,000 miles before cleaning (depending on driving conditions). Installation is a breeze with common tools, and it comes with AEM's Lifetime Limited Warranty. Note that 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 to know the legal status for your vehicle. Part #: 21 - 478WR

Using this AEM cold air intake system is straightforward. First, gather common tools like wrenches and screwdrivers. Then, carefully remove the factory air filter and intake housing from your Subaru WRX or STI (2008 - 2014). Place the AEM Dryflow air filter in the original air box space and secure the heat shield. Connect the mandrel - bent aluminum intake tubing and make sure it's properly attached to the engine's emissions control devices. As for maintenance, check the air filter regularly. Depending on your driving conditions, you might need to clean it every 100,000 miles. Use a mild cleaning solution and let it dry completely before reinstalling. Be aware that some versions of this intake system might not be legal in certain states. Always check the vehicle applications to ensure you're compliant with local emission laws.