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Resonance intake manifold Boxster S

Porsche Boxster S - Resonance intake manifold

Resonance intake manifold

The resonance effect, where the air mass inside the intake manifold is caused to oscillate, is used to optimise the induction process at all engine speeds. The engine in the Boxster S is additionally equipped with a switchable resonance valve.

The results are high torque, a flatter torque curve and high power output. The sound produced is characteristically resonant and deep, as you would expect of a Boxster.