Works on BMW N55 3.0L Engines from these chassis codes: - 3-series 335i 335iX F30, F31, F34 - 4-series 435i 435iX and Gran Coupe F32, F33 & F36. This kit is designed to AVOID pressurizing the fragile N55 PCV system by testing right at the turbo inlet instead of anywhere before the turbo inlet.
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