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Boomba Racing Adjustable Blow Off Valve Adapter - 22 WRX / 19-23 Ascent

For adjustability this piece has nine threaded holes, we ship this piece with 3 of the holes open and we also include a 2mm allen key for removal. For fine tuning, remove and add screws as desired to reach the amount of venting or recirculation you are looking for. 

The adapter will always partially recirculate even w. . . Show More >

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