355 factory oem (Ansa) muffler rattle

So I have had an intermittent exhaust rattle for close to two years. Thought it was the heatshields on the bypass Y pipe, but those are all tack welded down now, and still have a rattle....only when hot and in lower rpm range (intermittent). Ferrari of Seattle diagnosed a loose baffle within the muffler itself. So Ansa makes not only crappy exhaust manifolds and catalytic converters, but you can add the muffler too.

Considered aftermarket, but FoS has a low mileage oem muffler they are making me a fair deal on.

 

Stock exhaust is pretty quiet unless you are at wide open throttle and the bypass valve opens...otherwise pretty sedate.

355 oem exhaust prices are all over the place. Currently there are prices from $230 to $850 or there about on Ebay and Ferrariads. Condition would be important, since mine probably let go around 45k miles or so...I am at 54k now. I didn't wish to do the work of trying to find one with known lower mileage and condition. I will PM you the cost info, as I don't want people bashing what FoS is charging me (even though I think it is a more than fair offer)...some people have it out for dealers, and I don't wish to see that unpleasantness here.