Ale,
The suspension upgrade was developed by SSL (Peter Ballard) and is distributed by Librands. It comprises new front and rear coil over units with revised spring rates and shocks by Spax, adjustable for ride height, pre-load and rebound. I had mine fitted by Librands, but other dealers will fit. I'll PM you Peter Ballard's e-mail, I suggest you follow up with him. It will certainly fit your AeroSS, but might need slightly revised settings at the rear as you have a lot more bodywork than a Plus 8!
Peter
