Find attached a picture of the resonator pipe to muffler pipe connection that is leaking on my '03 Legacy GT sedan with 107k on the clock. my guess is the flanges will not put up with me taking them apart. Once apart they will never go back together again. Is my best bet replacement over flanges, and new donut and call it fixed for awhile. Or is there a stainless kit I should put in it and fix it right? Cause only thing I am finding on Rockauto and at local autoparts stores is Walker aluminized stuff?