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The Firestone Ride-Right system (not sure of spelling) and the Air-Lift 1000 System are fairly equal in quality. Definately get them installed with the ability to adjust pressure in each side. (So you don't have to worry about load shift from bag to bag when filled with one fitting.) I am on my second set of Air-Lift 1000s, and won't own another truck with out them. The on board compressor is not neccesary, but it is a nice accessory, and you can rig it all together with air horns if done properly.