Yup those plugs did cross reference to the application but Jeep is owned by a German company so that doesn't say much. How come you don't have a German made car?
Most bosch plugs I've run across end up in the scrap bin, but not as fast as those Split Fire plugs. If the autolite and rapid fire plugs hold up to dirt track race conditions @ 8-9K RPM then they are good enough for the street IMHO
The SLP CAI system is prolly your best bet to keep within the emission standards.
As for the install it doesn't look to be to much trouble for me, but I'm used to having bolt on upgrades not working without some modifications.