Cold Air Intake for Acura RSX (2002-2006) Type-S ONLY 2.0L EngineUnleash VTEC: Chrome Short Ram Air Intake for Acura RSX Type S Let your K20 engine scream. The 2. 0L I4 in the RSX Type S is a legendary performer, but the factory air box restricts airflow and muffles the engine's true character. This Ultimate Performance Short Ram Air Intake Kit replaces that restriction with smooth, chrome polished T 304 aluminum piping. The result is a massive 8 10% increase in horsepower and torque, improved throttle response