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GrimmSpeed 3-Port EBCS Boost Controller - 08-14 WRX / 05-09 LGT

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This 3-Port boost solenoid is a great means of tuning your boost curve through the ECU. For those of you who upgraded your downpipe, this is a great means to control boost through tuning so you're not running max boost levels from lower to upper RPM ranges. With the 3-Port boost controller, you can safely tune your boost levels at the max-safe l. . . Show More >

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