I have a 1996 Cadillac Sedan DeVille Concours....My factory air suspension died at 190,000 miles I was faced with thousands of dollars to replace the factory system. I found a few companies on the internet who made aftermarket parts...I did some investigation and I felt the most comfortable with your company after I contacted all the companies by phone. Your product seemed too good to be true for the price. I reluctantly ordered the rear air shocks from you. When they came they actually looked substantially heavier and of a highter quality than the factory part! I had them installed only to find the pump was dead.... Just my luck! I ordered your replacement pump....when that arrived it was very simple to transfer the factory harness and air dryer to the new pump. I took it to my shop where they installed the new pump. Your air ride system is amazing! The pump is substantially quiter then the factory pump and your air shocks give just as good of a ride as the factory shocks!! Thank you so much for manufacturing such a great product and my car thanks you also!! And so does my pocket!!! A $400 project compared to $2000 using the factory parts.