I built a set of struts for my mazda 3 that uses Airlift bags. The type that seal with a big O ring around the strut body. I had to build a set of struts for the car using Toyota Celica strut inserts and 2 inch Dom tubing. I also had to machine a custom peice for the O ring to seal up against. All together its very complicated and you would be way better off buying some Universal Air Aero bags and using your factory struts. Feel free to email me and I can walk you through building a set of struts if you want. Andy.
alldayfab@gmail.com