Do you plan on doing any lifting, tires etc?
If so, then changing the gearing can help you keep some of that usable power.
The old 2.5's were amazing, bulletproof little motors. They were guttless wonders, but you never had to worry them. I had one in a 93 YJ, manual trans, no a/c, with a 3" body lift and 31x10.50 AT's. I could forget about cruising over about 65 mph. Max speed was 70 mph, downhill, with a tailwind.
I'm sure the newer ones have a little more power, and can handle interstate speeds depending on how you have it set up.
__________________ "If you don't have parts left over, you did something wrong."
"Owning a JEEP makes heroin addiction look like a vague wish for something salty."
"A liberal is someone who feels a great debt to his fellow man ....which debt he proposes to pay off with your money."
I've had two 2.5L Jeeps ('01 TJ and '00 XJ still have the '00) and have loved them. It is amazing what those little engines can do. On both I added an aftermarket air tube and filter assembly to replace the air filter "box." I've put one on my 4.0L '04 Unlimted as well. In each case I've had more power and better fuel economy. For offroading it was a noticeable help, especially in the Appalachian Mountain region of western Maryland where I live. My best purchase was from Rusty's Offroad in Alabama. They have a great web site and they are the least expensive aftermarket option available. I used Turbo City's Rocket Air on the other two but I like the kit I got from Rusty's the best. Hope that helps you with a simple possibility.
__________________ Nothing special; No impressive mods; Never going to let it go. No se preocupe. Todo esta muy bien con Dios. (I Corinthians 4:8-9)