Does anyone know the size of the flange that is on the CAT that bolts to the stock turbo? I really only need the cord distance (distance between the center of 2 holes) or the Pitch circle... If anyone knows that would be great. Or if they have an old cat laying around and could accurately measure that would be great!

I am making a SS flange at work and I don't want to have to separate the flange to measure...

 

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why not just go to the local Audi or VW dealer and by a gasket, its like $5 and you can get your measurements that way.