Cam specs make my head hurt when you compare them, but I think for the money the Intense cams don't get as much credit as they deserve. The XPZ idle sounds tame compared to even the IS3, but they probably try to incorporate driveability in with them.
I've gone back and forth and back and forth on this myself. I want an all out power beast, I don't really care about how well it performs on the street really, but I want to be able to drive it on the weekends.
The bad thing about these things is it's hard to find non-biased information on either of the other grand prix sites.
