I'd love to post mine but it's not running right now lol I took the ECU out to rewire so it'll control ignition now too. I couldn't hear olies for some reason but mine has a MSA 6-2-1 header that I actually really like, into 2.5" crush bent exhaust (only 2 turns) into a dynomax "bullet" muffler and finishes through a magnaflow street series flow through muffler. The dynomax was added about a year later as at top rpm range it would make ears bleed acording to friends I raced. They dynomax is completly flow through 2.5" all the way through, the magna flow is flow through as well but steps down in pipe diam inside the muffler probably 1.5 or 2" I haven't measured it. It sounds alot like the one with the Borla muffler posted as far as deep bass sound, but finishes with the raspy Z roar like the first clip posted. It has alot more bass to it since I added the dynomax. I'll try to post when I get it running.
Oh yeah.. forgot to mention I run a decent sized cam too so it lopes when it idles kinda like a v-twin motorcycle, although the megasquirt cleaned up the idle quite a bit, much smoother now.