AIRREX digital management is by far the easiest air management to install. as far as reliabilty it is very reliable and have not had any issues with it . I would place it second to Accuair and the best Pressure based system in the market. AS far as kits go... it should come with everything you need from compressors tanks valves wires hoses.. I know your in africa do you guys use NPT threads there or British threads... AIRREX has British threads .. Tire wear.. here is how you do this.. it has nothing to do with people running skinnier tires .. they do that on a wider wheel so they can get that stanced look and somehow stuff the tire into to fender.. With air and what we do is set your ride to your everyday ride hight.. take the car to get aligned at that height.. so no if your not a auto leveling set up you just log down the pressure you aligned the car at. and drive it at that height it was aligned at.. if your an auto level system just hit the switich to your everyday drive height.. this way your alignment should be at were it was set. Thank you so much for the advice guys.. last set of questions. What happens in the event of failure? A bag gets punctured, line ruptured etc? Eight08, I'm definately taking your advice. As to what car, i'm going to install air on my 2006 Audi