A single anti tramp was fitted to the S3 from 2010. I think the 3.7 got two until the 5 link appeared.

On those images, thd only non standard parts are the Konis.

Removing the steering damper blades and adding Mulfab steering bearings will transform the feel, but while the suspension is stripped you may as well add hard chrome kingpins and bronze bushes.

Quite honestly, power steering isn't necessary on the S1 with those mods.

DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4