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The Turbosmart IWG75 internal wastegate actuator improves boost response for Subaru WRX/STI models fitted with TD04 turbos, including many 1997–2007 WRX applications and GDB Spec C 2003–2007 variants. Its increased working ratio sharpens boost delivery. Offered with optional springs, the unit features billet components, a locking collar, proprietary diaphragm and stainless rods for tunable, durable operation.
Turbosmart IWG75 2003-2007 Subaru TP WRX / STI GDB Spec C EJ207 7 PSI Black Internal Wastegate
