I need a replacement exhaust gasket between the midpipe and muffler for my Greddy Evo exhaust. I have been to three parts stores and no luck. The only place online I can find it the price is $15 for the gasket and $13 for shipping, which seems an awful lot for a gasket that would cost $6 at NAPA (if they had them there).
Anyone have any recommendations on where to find one?or should I just suck it up and pay the extra few dollars?

Gasket is 3" internal diamater and 4 1/4" at the bolts.