Thanks to everyone for the good words!

I had thought it was about the same speed-wise as my '01 F4i (Exhaust and PC3) based upon my time spent up to and around 7k rpms or so on both.

Today I merged onto 64 in 2nd and as I passed 12k rpms I actually said "Holy Shit" inside my helmet. It is WORLDS faster than the F4i and sounds so much meaner with only the stock exhaust. I'll admit the midrange is lacking a bit, but its a monster on the top end and I dont even have the balls to see 15k rpms yet.
Yep. I was going to go with the no-cut R&G or ShoGun sliders, but I've heard mixed things on those (and the ShoGuns were backordered) and never heard a bad word about the Woodcrafts. I should have them by the end of this week and then its time to dremel.