I run a set of GFB 9012 adjustable response BOV that I normally set to recirculating. They top quality made stuff and look stealthy under the hood. I also have the big whisling trumpets for them that are really facking loud if you set it to atmosphere setting all the way. The regular trumpets it comes with have more of a whooshing type sound and aren't as loud. You can adjust their settings to be easier and longer venting or not so it's really unique. If you run them in recirculating mode they do help provide a bit more throttle response so it does work what they claim.
Plus with the K&N typoon air intakes it gets louder but not as loud as the trumpets so it might be more suitable to not draw too much attention. I also have the
HKS SSQ 4 bov that I used initially for a while but somehow they caused my car to go into limp mode on WOT. They are probably one of the most favorite since they have a very unique sound to them. But yea ever since I had that issue I haven't used them again.
I think the 2022+ stingers have a bit different stock tune that is more sensitive to BOV with venting but I haven't had a single limp mode with my GFB's in either setting. I am not sure if its either the
HKS bov or the borla active using my apr wireless controller that caused the car to go into limp mode. I still would say I prefer the
HKS sound far more than any other. I am about to switch to the MBRP pro active now and might put back the
HKS since I really love their sound so much and see how it goes.
I think most stinger owners just run the stock bypass valve and just get air intakes that amplifies the sound more. Sounds pretty good in person. That's probably what I would do and stick to. Less hassle and still sounding pretty darn good. Plus keeps and turbos and engine happier getting recirculation with how it's designed to work from factory.
Most probably will tell you to not bother with BOV. But it's your money your car, you can do whatever you want!
