The AEM 21 - 778C Cold Air Intake System is a game - changer for your Mitsubishi Lancer. It boosts horsepower and torque by replacing the restrictive factory air filter and housing. The oversized AEM Dryflow synthetic washable air filter allows excellent air flow, filtration, and performance. Located in the driver - side wheel well, it lowers the intake air temperature and increases power. The lower tube is a mandrel - bent aluminum one with a tough gunmetal gray powder coat finish, while the upper tube, made of roto - molded HDPE, insulates the cooler air from engine heat. This system is designed to work with the Lancer's factory emissions control devices. The AEM Dryflow air filter, oil - free and synthetic, can last up to 100,000 miles before cleaning (depending on driving). Note that some AEM air intakes aren't legal in California and states with similar emission standards, while others are 50 - state legal. Check the 21 - 778C vehicle applications for legal status. It fits 2015 - 2017 Mitsubishi Lancer ES, 2015 Evolution GSR, 2015 - 2016 GT, 2015 - 2017 SE, and 2016 - 2017 SEL models.

Using this AEM cold air intake system is straightforward. First, remove the factory air filter and intake housing from your Mitsubishi Lancer. Then, install the AEM system following the provided instructions. You'll notice an immediate improvement in your car's performance. When it comes to maintenance, check the air filter regularly. Depending on your driving conditions, you may need to clean it every 100,000 miles. Cleaning is simple: just wash the filter with mild soap and water, then let it dry completely before reinstalling. As for legal matters, always check the vehicle applications to ensure it's legal for your car in your state. Don't use it in areas where it's not permitted to avoid potential fines.