ProStar CM871 Turbo (Before Milk2)

[Chamberpains]

If you watch Rawze video's on installing pyro and boost gauge, I believe he says he uses a standard NPT (national pipe thread) adapter and just seals it up good with pipe thread SEALANT (not pipe thread tape)

If your willing to wait, I got the actual metric to NPT adapter from glowshift themselves. It takes a day or 2 for delivery to PA. Summit racing, I believe has them too and they are located just before Akron OH. They're located right along i76 right off the exit. They have really quick shipping to PA too.

https://www.glowshiftdirect.com/m14-p-1-...d-adapter/