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The Injen RD cold air intake for 2004–2006 Toyota Matrix XRS replaces factory plumbing with mandrel-bent 6061‑T6 tubing and a SuperNano‑Web dry filter to increase mid-range power and airflow. Dyno-proven gains up to about 12 hp and 8 lb‑ft are published; the kit is available polished or black, delivers a throaty intake tone under acceleration, and includes hardware and instructions with Injen's limited lifetime warranty and CARB EO support where applicable.
Injen 2004 Matrix XRS Polished Cold Air Intake
