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The Injen SP short‑ram intake for 2020–2025 BMW G20 3‑Series M340i (B58 turbo) replaces the stock inlet with a 4.00" mandrel‑bent 6061‑T6 aluminum tube, improving airflow while preserving fit. Dyno‑proven to add up to 19 hp and 18 lb‑ft, it includes a custom heat shield and a serviceable SuperNano‑Web filter. Offered in multiple finishes and backed by Injen’s limited lifetime warranty, it bolts on without tuning and enhances throttle response and engine sound.
Injen 2020 BMW M340i SP Short Ram Air Intake System Polished Finish
