Is there any knowledge of a coil-over application for a 91 200 TQ avant with a 92 S4 ft.end. I am currently running turbogas and H&R springs. It is an improvement over the stock setup but I am looking for some additional flexibility and performance. Dave at GPR was not able to help and I had no luck from Rons Parts. Who else out there would be a good contact? Thanks Jeff Donnelly