Another Mazda rotary engine innovation is using an auxiliary intake port valve that can swivel open to increase the amount of air during the intake phase when required for more power at higher RPMs.

A cold air intake replaces your vehicle’s factory intake, moving the intake to the outside of the engine compartment so it has access to cold air and gets more airflow. Colder air is denser and ...

All engines allow some exhaust ... Separating the crankcase from the intake manifold, which is a source of varying air pressure, the PCV valve maintains the optimal level of vacuum in the ...