1vic - I plan on getting the GV tails for mine, with the stubby rear bumper and ideally, the simpson 3 piece spoiler. I think it'd look tasty.
Slideruler - I had a Corksport exhaust for a minute and sold it. It hit my rear axle. And it sounded crappy. I have a straight pipe in place of the cat, but it didn't sound good at all. It looked exactly the same as the ebay special OBX or whatever it's called this week.
I posted an inquiry to the old thread over on m.net also. I saw it on there a long time ago and have wanted to modify mine ever since. I think that rear bumper support was mostly there for slow speed collisions. Regardless, I don't mind removing it. I'll probably just end up buying the Simpson bumper. I looked at my stock bumper yesterday, and can't quite see where you could cut it to make it sit flush and have the lines match up.