I'm not new to the forum, but I think this is going to be my first post!
I just wanted to put it out there that I have a set of the Go Fast Bits Deceptor Pro II blow off valves for the Stinger GT for sale.
Barely used, working perfectly. The full ad is on Gumtree, just search for "GFB Deceptor Pro II Kia Stinger Twin Blow Off Valve Kit".
Feel free to ping me (via Gumtree) with any questions or offers.
Hope you all have a great week!