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The TurboXS boost control solenoid for 2002–2007 Subaru WRX replaces the factory two-port unit with a three-port solenoid to enable improved boost control. This replacement is intended for applications using an aftermarket downpipe or upgraded turbocharger where finer boost regulation is needed. It provides an OEM-style fit with the additional porting required for modified systems.
Turbo XS 02-07 Subaru WRX/STi Boost Control Solenoid Kit
