Same engine as mine, yes. I haven't had to do much wrenching on it so far, just maintenance stuff so I know it's up to date. The high idle I use in the winter as it warms up much faster, but it could also be used when you're running accesories like a winch, etc that use a lot of juice, as it spins the alternator faster. I've also heard if you idle a lot, it can prevent the injectors from gumming up.
An intercooler can definitely be added, as John said the factory setup uses the sport hood with a topmount core. If/when I add an intercooler, I think I'll be going with an air/water setup, less chargepipes = less boost lag, and no concerns about damaging the core off road or in a fender bender. Big gains to be had from adding an intercooler with no other changes, the factory setup nets 15hp and 42ft/lbs over the non-intercooled version, and 2mpg!