CCM kit was installed a couple weeks ago and we finally got the new tires on it last night. Im really happy with how it came out...although I am still considering a 2" body lift. 
Before
After
Found out there was already a 1" spacer on the front, so there wasnt quite as dramatic of a difference when we installed the CCM 2.5/1 kit, but still a noticeable difference. Switched the 20's out for some older stock 17's as I am not at all a fan of the 20's. Keeping my eyes peeled for some "prettier" 17's, but these will do the job for now. Tires are BFG A/T's 305/65/17, no rub at full lock and required no trimming. As it sits now, Im just shy of 2" taller than my husbands Silverado which has the CCM 2" front level installed. Needless to say, he isnt very happy now. Hehehe!
Of course his new tires are still to come and will probably put us back to neck and neck, but Im relishing in it for the moment!
Before
After
Found out there was already a 1" spacer on the front, so there wasnt quite as dramatic of a difference when we installed the CCM 2.5/1 kit, but still a noticeable difference. Switched the 20's out for some older stock 17's as I am not at all a fan of the 20's. Keeping my eyes peeled for some "prettier" 17's, but these will do the job for now. Tires are BFG A/T's 305/65/17, no rub at full lock and required no trimming. As it sits now, Im just shy of 2" taller than my husbands Silverado which has the CCM 2" front level installed. Needless to say, he isnt very happy now. Hehehe!
I would kept the 20's and put on Nitto Terra Grapplers though 