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Discussion Starter · #1 ·
I have a 2014 ford focus st with a turbosmart BOV and i noticed when I was doing a pull the bov seemed like it open when in full throttle. There is a distinct hissing noise coming from it anytime i get more than 3/4 throttle id say. I cannot go over about 17.5 lbs of boost and thats if im really getting on it. If you have any ideas please let me know asap I was going to try and tackle it tonight.
 
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