This K&N Performance Intake Kit is perfect for car enthusiasts who own a 2003 - 2004 Ford Mustang Mach 1 V8 - 4.6L DOHC. Whether you're cruising on the highway or looking for a bit more power during a race, this kit will enhance your driving experience. The high - density polyethylene tube and washable filter contribute to better engine performance. Installation is quick, so you can get back on the road in no time. Please note the CARB status for California use.