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The Injen SP short ram intake for 2011–2013 BMW 135i (N55) and 2011–2013 335i/xi delivers a tuned aluminum intake with patented MR and Air Fusion technology. It uses 6061‑T6 tubing and a serviceable SuperNano‑Web dry filter, offers dyno‑proven gains up to 15 hp and 18 lb‑ft, and preserves safe air/fuel ratios. The kit includes tubing, filter, scoop, hardware and instructions.
Injen 11 BMW E82 135i (N55) Turbo/E90 335i Polished Tuned Air Intake w/ MR Technology, Air Fusion
