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GrimmSpeed 3-Port EBCS Boost Controller - 06-07 WRX / 04-07 STI / 04-08 FXT

The GrimmSpeed aftermarket boost controller allows you to raise the OEM boost levels in a quick and efficient manner. The OEM solenoid is programmed to make only so much boost, so surpassing the levels on the OEM solenoid can become dangerous as the target numbers become unpredictable, and dangerous for your motor. With the GrimmSpeed solenoid, you are able to spool your turbo quicker, and maintain a consistent boost level. These solenoids are made to withstand 120 PSI, which is way . . . Show More >

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