Okay so i a plan in installing air suspension on my 2007 sti. I bought a set of d2 air struts that were used with 3,000miles on them (just the struts). I plan on getting the airlift 3h complete air management kit to complete my setup. Questions: Is there anything i should do to my suspension or my car in general when installing air suspension. Should i get any other suspension parts or any other parts for my setup that wont be included in the kit that should be done and/or help improve performance? Also i cant find much about d2 airstruts but that say they are 36-way dampening adjustable. Now is the damping/stiffness going to be only adjustable manually or will i be able to do that electronically with the airlift management system? Sorry if these questions dont make much sense im trying to research everything but not finding what im looking for... thanks