do a search on oil use. You'll have to measure how much oil your using (20:1, 30:1) etc. You'll also want to check plugs/fuel pressure. Most are rich from the factory but apparently not as much in 06.
It's been rehashed alot so you won't get many responses.
Check for full shift out using a sharpie (make lines on the clutches, go ride, if you can still see part of the line you're not shifting out all the way.
ODS clutch kits seem to be the way to go (although I don't have one).
Also do a search for "best way to add top end". Best thread I ever started.
Addicted to WOT drifts