I had the TF 2.5 coils with the fox 2.0 ifp shocks and thought the ride was great. They were stiffer than the stock sport shocks but I liked it that way, no more body lean on turns. You will not need arms with this kit, but front lowers will help to fine tune the caster. I recommend that you get the kit and install it, of you need to adjust the caster then get lowers, if you need to re-center the front axle get the trackbar. I did not need rear arms on my JKU and I did not need to trim the pinch seam for my 35" tires. It was a sport so I did not have rubi rails.

If you plan to go higher, as I did with the addition of leveling pucks, then you will need both the front lowers and the adjustable trackbar. The combination of the 2.5" coils and the leveling kit net me 3.5" on the front with a RuggedRidge bumper and a winch.