The rear of my SUV sags when hitching a boat trailer and the Air Lift 1000 seemed like the perfect solution. Upon opening the box, it became apparent that inferior components had been used. The bags themselves seem fine, but the airline components are tragic. Air Lift manufactures several high performance suspension kits that use reinforced stainless steel air ducts and screw fittings. Air Lift if you ever read this please make a kit that uses higher quality components. I would have no problem paying $250 for a quality kit that will last a long time, but I have a problem paying $100 for a kit that is less than a month old and has already failed.