I'm running single adjustable QA-1's on the car now. The koni shocks i was running were just stock replacements that I modified by replacing the lower mount and machining a threaded sleeve and nut for the outer body of the shock (homemade coil over). The koni shocks were about ten years old and weren't adjustable, so I replaced them with the QA1 a couple years ago. The rears are a universal QA1 coilover, can't remember the part # or length.