04 05 06 07 08 Mazda3I/S 2.0L 2.3L i/s Cold Air Intake + Blue Filter CMZ2RB 2004-2008 Mazda 3 I/S with 2.0L/2.3L Engine, Automatic & Manual Transmission It's the ultimate performance Cold Air intake Kit This air intake kit will increase 7-10% of Horsepower and 5-8% of Torque Easy to install and easy to fit with simple tools No additional parts will be needed for installation after you purchase this kit