The Mazda Protege5 Intake Manifold provides the energetic small car with even air movement in order to make reliable power with low fuel use. The cast iron applied to make the molded composite body is much lighter compared to the old cast iron, hence it cools quickly and supplies the cylinders with cooler and denser air to allow a stronger punch and longer engine life. Each gulp is divided into equal parts carefully with the help of runners, and small surface ribs are applied to mix the mixture, leaving no drops of fuel in the mixture to ensure there is no knock and rough idle. The LX and ES trims have the same bolt pattern and therefore the simple fixed length unit can easily be swapped with the more advanced variable length version and vice versa. That variable design switches small butterfly plates to adjust the runner length on the move, with acoustic resonance providing additional low-end torque, but still able to breathe freely at high rpm, a clever feature that earned the manifold a reputation for consistent performance. Since the Intake Manifold also hosts the throttle body, coolant passages and other important temperature sensors, it is a control center and fine-tunes the fuel and spark for the engine computer, improving efficiency and reducing emissions. Vacuum is maintained by tight rubber seals, which means that there is never a chance of stalling and safety is enhanced in traffic. This Mazda part is prized by its owners because it fits directly on all years of production of the Protege5, and its lightweight shell with sensor bosses makes it unique in a crowded market. The tuners celebrate Mazda because they have fitted the sleek casting onto the ZM-DE powerplant, and parents are pleased that the Protege5 is such a good balance between fun and responsibility, and the Intake Manifold is in the center of that balance. The unit often performs without problems well after 200,000 miles with genuine Mazda seals.
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