I've looked and I've looked...but I can't find it. What are the dimensions of a T-25 flange? Mabe it would be easier to just tell you what I have. I have the turbo that Apex-i used in thier D series kit but I'm putting onto my B16. The only thing I now for sure is that it's a KKK ball bearing turbo. The exhaust flange is (outside edge is 3 5/8" x 2 3/8")...(hole in the middle is 2" x 1 1/2")..(the bolts are 2 7/8" x 1 3/8" center to center...NOT measured diagonally)

 

If you could get a pic, I can help. Also, how many bolts are there? Does it look like a standard Nissan T25 discharge?