Item Description: Product Type: For Toyota/Scion intake system accessories Package Include: 1×Replacement Engine and cabin air filter kit Country/Region of Manufacture: China Engine Air Filter Size: 9.80''x4.74''x2.0'' Cabin Air Filter Size: 7.6''x8.5''x0.7'' Compatibility: Scion Xa L4 1.5L 2004-2006 Scion Xb L4 1.5L 2004-2006 Toyota Echo L4 1.5L 2000-2005 Engine Air Filter Features: A clean air filter can lead to improved air flow and prevents dirt and dust from entering the engine. A clean air filter helps keep damaging particles from entering your engine and causing increased engine wear. Dirty air filters restrict airflow, which can contribute to decreased acceleration and horsepower and reduced overall performance. Cabin Air Filter Features: Encourages cleaner, fresher airflow through the vehicle. Improve defroster and A/C performance with a new cabin air filter. Available in particulate or carbon depending on application. Easy installation with instructions included in every box. Replace every 12 months for optimum performance — or more frequently in harsh or dusty environments. How to replace engine cabin air filter: Most of the engine air filter installed in the engine room of the black box. Ensure the vehicle parked parking brake and flameout. Wear gloves. Screw and pull open the clip grasp the attention of the appropriate intensity. Most cabin air filters can be replaced without tools but some require basic hand tools to open the cabin air filter compartment. Usually installed in the following three positions. Under the hood, near the windshield. Underneath the dashboard. Behind the glove compartment.