I have a 2015 wrx.. I bought a nameless axle back muffler delete with the stock 2 bolt mounting end when I looked under my car the flange there is a 3 bolt pattern and I can't seem to find out what its from.. the picture I added is just to show what the mount side looks like for my car. My exaughst still says STI and has all original welds so It seems.. does anyone know what exaughst this is? Please and thank you for your help in advanced!
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