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The Injen SP cold-air intake for 2007–2013 Mazdaspeed3 2.3L turbo (manual) replaces restrictive stock plumbing with 6061-T6 aluminum tubing and a SuperNano-Web dry filter. It reports substantial dyno gains—about +33.3 HP and +35.1 ft·lb torque—while preserving safe A/F ratios via Injen’s tuning features. The kit includes tubing, filter, hardware and instructions and carries CARB EO #: D-476-8.
Injen 2007-10 Mazdaspeed 3 2.3L 4 Cyl. (Manual) Black Cold Air Intake
