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Discussion Starter · #1 ·
has anyone installed a gfb blowoff valve on a stock wrx? any known problems with this bov such as the surging or running rich when its run on 50/50? just wondering, i just replaced my aem cai back to the stock airbox. i already have the bov, just not installed yet. just wanna see if there would be no probs with it, i do want the sound also.
 
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