My Q is just a DD. but the rear springs sag so i decided to go with air bags on the rear 1. half the price of getting new springs, 2. more comfortable ride in the rear, 3. for what im using it for the rear will never sag again.
i bought them early this year but waited b/c i didnt think the mount kit was going to working correctly with it but i did get around to doing it last week .
they sold me a universal mounting kit but after installation it did what i expected. it didnt fit right and another thing i didnt expect was it still didnt raise the rear end to factory height so it still looks like it sags. and actually needs to come up about another 1.25"-1.5".(that is with max air in them) with that said i have to make a new mounting kit for the bottom side but i will just have to modify the top side to work better and get metal off of metal since it has no bolts to keep from moving and wearing metal on metal.
even with the set up needing correction . i am very please with the airbags themselves and how they perform so far.
i would definitely recommend the company that i bought them from but if you are buying for your Q you will have to make your own mounts. the bottom side is not inline so the bags are tilted and can't get full performance out of the bag and the new mount i make will bring them to be vertical they are going to be similar the the q45 from somewhere up north that has them done and he made his custom.
i will post pics of the current soon and post some of the correction hopefully in a few weeks i hope i have time to make the in the next week.
