GrimmSpeed Boost Control Solenoid (06-07 WRX & 04-07 STI)

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  • Regular price $129.00
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  • Decrease Spool Time 
  • Provides a quicker, and more precise boost control response
  • Plug and Play into OEM Harness
  • Works Safely with Factory Subaru ECU 
  • Prevents Over Boosting
  • REQUIRES CUSTOM TUNING
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    THIS PRODUCTS FITS  04-08 FORESTER XT AS WELL