I feel the side wall height of the OEM tires is too small and at the same time the gap between the top of the tire and the fenders is too big.

I´m thinking of going with a set of Michellins 275/55/20´s that have a side wall that is 1.5 " higher than the oem 255/45´s (but have the same width).

This obviously leads to the vehicule being 1.5" higher. To compenstate the added hight I´m thinking of cutting .75" off both the top and bottom of the springs, (since there is no lowering kit out there and as such the JC SRT8 is already lowered 1" vs the standard JC non SRT8.)

This will give me a better looking ride, (I think), granted I will diminish a bit in handling response but gain in comfort , (as the oem tires are run flats are much harder than the Michellins).

Any comments or suggestions. What do you think?

Won't a sidewall change of 1.5" result in a .75" height change, not a 1.5" ride height change???

Plus the wheel well will look more filled with the larger tire. I'm not saying don't lower it but I'm not a big fan of cutting stock springs to accomplish this. I probably will go to a larger tire (nicer ride, more wheel protection, etc) when I get mine but probably won't lower it b/c of concerns about making that front spoiler too low.