After 10 days of separation anxiety I got home from OS last night and got to drive her today.. oh, the joy.
200km/h on an Autobahn does not beat the exhilaration of driving a MX5 with the top down.
So time to fit a new X-force muffler purchased 2nd hand from Black_Penguin (thank you) and replaceced the gasket. One more exhaust leak solved and one to go (header) as it seems all the joining gaskets were stuffed.
The tip of the X-force muffler is not small (not totally my taste) but it does look nice in polished stainless. It is an easy 30 minute job with the hardest part is removing the rubber hangers from the stock exhaust. That done the X-force fitted quickly it was time for a test drive.

It is a really nice sounding exhaust, a fraction louder but nothing you could consider obtrusive. Really happy.
Looking forward to fitting my crappy headers and at least fixing all the exhaust leaks. I can then assess if Empire headers are any good or if I need to look for some better quality. (or at least how soon I need to replace them).
Now, off to watch some racing at Homebush.