Is there someone that makes the flange to fit our Cat converter from the downpipe? Maybe a universal fit style or something someone has tried out. That's the last piece I need to finish my exhaust downpipe (properly).

 

I used a t25 on my civic and used the stock downpipe off an eclipse but cut it to make it shorter and heated the bend into the perfect angle for my civic. It has a flange on it to go to the cat but to properly seal any exhaust leaks I used an exhaust donut.