We had a customer ask about the thread pitch/length of the o2 housing to turbo bolts on the 2003-2005 Dodge SRT4.
So, here is the specs:
M8x1.25×20
The stock turbo uses 4 bolts to secure the o2 housing to the turbo.
The Mopar stage 3 turbo uses 5 bolts to secure the o2 housing to the turbo.