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The polished Injen SP cold-air intake for 2007–2013 Mazdaspeed3 2.3L turbo (manual) swaps factory intake for 6061-T6 tubing and a serviceable SuperNano-Web dry filter to boost airflow and induction sound. Dyno-proven gains around +33.3 HP and +35.1 ft·lb torque are reported; the kit includes hardware and instructions, optional hydroshield compatibility, and carries CARB EO #: D-476-8. No extra tuning required.
Injen 2007-10 Mazdaspeed 3 2.3L 4 Cyl. (Manual) Polished Cold Air Intake
