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Injen SP polished short‑ram intake for Mazda RX‑8 (2003–2011 1.3L rotary) uses rotomolded housings with patented twist‑lock filter retention and smooth 6061‑T6 aluminum piping to reduce restrictions. Dyno-proven gains up to about 21.7 hp and 13 lb-ft torque are reported, along with a more aggressive engine tone. The system includes a serviceable SuperNano‑Web dry filter, installs without extra tuning, and is backed by Injen’s limited lifetime warranty.
Injen 03-09 RX-8 1.3L 2 Rotor Polished Short Ram Intake
