IPD 987.2 Cayman/Boxster S 3.4L 74mm Plenum ('09-'12) (87474-3.4) 1537 TS5-HDSD kit features ACT's most

TS5-HDSD kit features ACT's most popular Heavy Duty pressure plate

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

and hardware

A frenzy of burbling and crackling erupts with every application of the throttle

IPD 987.2 Cayman/Boxster S 3.4L 74mm Plenum ('09-'12) (87474-3.4) 1537 TS5-HDSD kit features ACT's mostWorks 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