I have a 92 Prelude S exhaust piping (I think the flange where the cat should be is stock). The piping itself, is 2.5" mandrel bend steel pipes that go straight to my universal resinator, and then to my muff, no cat. Basically I need to know what, besides the fact that there are three studs, what Is important in ordering a new flange.

I have a stock jdm header that I need to use as a spare while I get my GReddy header warrentied, the only thing is the flexpipe is ripped off. There are some flexpiping on ebay for 20ish, so I figured I'd get the 2.5" by 4" or 8", and a stock flange to put on the end of that and use that ghetto combo until I get my other header back.

What kind of flange do I need? How long should I get the flex piping? Thanks for the help guys, my broke *** needs a car and to save as much money as I can for school.