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The aFe MagnumFORCE Stage-2Si cold air intake system for 2012–2016 Porsche 911 (991) Carrera S (3.4/3.8L) increases airflow with dual 360° radial‑flow Pro 5R filters using five layers of cotton gauze for street or track use. A smooth XLPE housing uses factory air inlets and a dyno‑tuned intake tube for direct bolt‑on fit, measured flow and documented gains. A vacuum‑formed removable cover allows extra airflow; the current housing will not fit vehicles with the 2020 Porsche engine‑bay heat shield added.
aFe MagnumFORCE Stage-2Si CIA System w/ Pro 5R Filter 12-15 Porsche 911 Carrera S (991) 3.8/3.8L
