Not sure about Titanium,
but an Aussie home made brand called Blue Diamond Chrome make all sorts of Stainless Steeel tips, much the same as Magnaflow tips.
They dont have a website as such, but any reputable exhaust shop can source them over-night.
Try
Performance Exhaust in Melbourne
or
Best Mufflers in Syndey for detailed specs on the range of tips available:
I personally prefer the Oval Angle-Cut Rolled-In type.
Regards: Sam