Hollander says 03-04 Mazda 6 only. MT engine only for MT Hollander #300-66028A (05-08 Mazda 6 300-66028B fits by switching Intake). AT engine only for AT Hollander #300-66029A (05-08 Mazda 6 300-66029B fits by changing Intake, Balancer, dipstick and oil pan). Login to read more.