SO ive got this mint GT1752 off a saab that im almost interested in using. But I was wondering about the 3 bolt DP flange. I have done some measurements and looking around but cant find any hard answers. Is this thing the same size as any other 2.5" 3 bolt flange..like, say a catalytic converter? If it is then GREAT, but if not then i have a bit more looking to do till I am ready to consider modifying my t3 manifold etc etc to make this turbo work. Btw I measured the bolt circle at roughly 80-82 mm, and when I looked at a 3 bolt exhaust flange it was marked at 95mm. Thats a big difference. Any insight? I know someone has to have used one before.

 

get a 2.5" flange and dremel the holes outwards a little. a 2.5" donut/female donut flange will work

 

I had a feeling it was a little bigger than a normal one.. thanks. And yeah it does look just like a donut flange on a header or something.

 

exhaust shop can get or make you one for a few bucks, or get one off of a ball flange kit/oem exhaust