Do These Hks Bov's Adjust?

[GTR--J]

These are new and a GTR specific kit.Most bov's are adjustable but there is nothing on these.

[Johnny Cash]

Yeah, there's normally a nut on the centre bit you can adjust, but it doesnt seem to be there on those ones, very strange. I'm yet to hear of HKS making non-adjustable SSQV's, but maybe I'm just hard of hearing.

Might wanna verify that they're genuine HKS, and if they are, I guess just use em the way they're made. Maybe they're non-adjustable because it's for a twin turbo car, and they wouldn't want one BOV to be blowing off more / less than the other.

So maybe it's a good thing, I dont know.