the tubeworks car definitely does not have a stock rear suspension set up...I do not have all of the specs on weight. The frame section is essentially 4 pieces of 36" x 1.75" tube, plus what a standard 4 seater cage would be.
The tires on Jayson's car are 33's. No matter what, every YXZ needs larger tires than stock and gear reduction. 45/15 is the go to ratio unless you are a more technical driver and in an area that needs it.
Nothing is changed front or rear, so you can keep what you have or add long travel, this kit does nothing to the suspension, geometry, width, or shock mounts.
The car is in Glamis being tested, unfortunately I am out of the country and did not get to go on its maiden run.