Turbo XS Boost Control Solenoid Kit (08-21 Subaru WRX STi)
Features:
The TurboXS Boost Control Solenoid is designed to replace the factory 2 port boost solenoid with a 3 port. This part is required for great boost control on your WRX when using an aftermarket Downpipe or Upgraded Turbocharger.
Fitment Information:
2008-2021 Subaru STI
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