ktm200 Posted July 14, 2017 Share Posted July 14, 2017 Have an AVO tmic and just put on a GFB BOV a couple wheels ago. Left it at 50% record and was getting used to the subtle BOV noise but just yesterday the sound changed. When letting off at high boost I used to get a "whooosh" not its more like a really quick "psst". Max boost was previously just shy of 17psi and now I'm only at about 13.5psi. Checked the BOV to tmic bolts and one was a little loose. Kept turning Bummer is that it is already helicoiled from a previous owner so I'll need to take out the current one and install a new one. So I'm not positive what size to order. I see a lot of threads telling what size to drill it bigger to for a bigger bolt but was hoping to just swap the helicoil and not drill the BOV body holes bigger. Is it an M6x1.25? Thanks Link to comment Share on other sites More sharing options...
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