Re read my post, the mopar bov was machined incorrectly. Kind of hard to mess up three bolts unless you over tighten them.

Upon inspecting it I noticed it didn't sit completely flush with the surge valve diaphram. I even swapped surge valves, tried RTV, etc. Other people where having the same issues around the same time...bad batch of them.
Also if you HKS blew off in vacuum (I assume you had the HKS) it needed to be adjusted. My Greddy only vents after 0 psi like it should.
And I really don't see the logic in the placement or having to still use the stock surge valve...the entire system is pressurized either way. Even more..the turbo is already pushing air to the throttle body right where the bov is, so instead of it traveling back and then venting it vents off right where the pressure point already is. I think it was just easier for mopar obviously integrate the bov in the turbo housing. Like I said I don't think it matters. Running both would be just fine too and you'd just have a more quiet aftermarket bov. I think it's completely fine being at the throttle body plus it reduces the length of the vacuum hose you use so you don't get bov lag thus resulting in surge in that case. I think the sole fact 700+whp SRT's use the bov in this location says something in itself. Every single aftermarket turbo requires a aftermarket bov...don't you think if this was a huge issue they'd integrate a surge valve in aftermarket turbo housings like the stock TD04 turbo? I've run as high as 27 psi and have zero issues with surge on my blocked off Stage 3 turbo and I'd definitely hear it if I did.
I just suggested he blocked off his stock recirc valves because I assumed he got this HKS for the sound as it does nothing for performance. With that being said it'd be much louder if he blocked these off.
Back on topic I'd like to hear a vid...I highly doubt though that the wife would ever want a loud bov on her car. It'd probably drive her nuts! lol