GrimmSpeed Boost Control Solenoid (06-07 WRX & 04-07 STI)
$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 THIS PRODUCTS FITS 04-08 FORESTER XT AS WELL
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