Titanium tips are burnt tips
They are indeed the sex.
I'm waiting for a local customer to pick up one of these so we can get some vids. Although there may be some out there..
Not sure on clearance, but our old 350Z was slammed on KW V3 coilovers, about a 1.6" drop in teh rear with this exhaust on it, never rubbed/scraped, even on my home driveway.. which often scrapes my 335i front HR Lip.
Here's one from a 350Z, which cannot sound much different:
YouTube - 2007 Nissan 350z HKS Hi Power Exhaust