Members on another forum think XREAS will prevent the current lift kits from working (spacer design). Apparently, the XREAS is a pressurized, closed system. Any adjustments to the system render it useless.
I am sure aftermarket kits will be made available in the future for a XREAS lift, just not out the gate.
I would like a 2" front lift and 1.5" rear lift. That should allow me bigger tires and to balance out the front, which seems to be lower than the rear.
I agree, the dual exhausts sound and feel awesome.