S1's do indeed have a threaded rear tie bar. These are still available from motor factors (as I chucked 3 brand new ones away about 12 months ago)

Trouble with just altering that bit is it also affects the rear castor if you go too far. The degrees altered by placing washers behind it cant really be accurate enough.

My rear toe out is measured down to 0º 05' accuracy and as there are no rubber or poly bushes to give way on cornering it stays there exactly as set.

Adam remember you need to be running some rear coilovers to be able to fit this kit. But its designed in such a way that you just unbolt your old arm and tie bar and replace with the new. All the arms are protected in clear plastic sleeving to keep even the bufty boys happy.



The rear arm (nearest camera) takes care of toe (without upsetting castor), the pair together take care of camber, and the tie bar sorts out any castor changes needed.

All the stuff is plated and powder coated (any colour) so it wont rust (unlike my early prototype one in that pic )

A "little" rear toe out will help cornering Arjan, but a camber change will do it more effectivly