IPD 987.2 Cayman/Boxster S 3.4L 74mm Plenum ('09-'12) (87474-3.4) 1537 Our design expands into the

Our design expands into the available space below the engine

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These systems are designed to be used with an engine management system that can add nitrous enrichment through the engine's fuel system

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and hardware

IPD 987.2 Cayman/Boxster S 3.4L 74mm Plenum ('09-'12) (87474-3.4) 1537 Our design expands into theWorks with Factory 74mm Throttle Body Porsche's introduction of their DFI (Direct Fuel Injection) intake was a totally and completely redesigned intake system developed to deliver improved performance, fuel consumption and emissions by optimizing the air fuel mixture directly inside the combustion chamber. The DFI Porsche engine package is a finely tuned performance machine and additional power has proved difficult to find. The unique design of