Yes it should do.

 

Local Porsche dealership responded, that they cannot order Porsche Motorsports parts at all and pointed me to a vendor, that runs a Porsche racing team and sells mod parts (Manthey, BBS and sorts). Email sent. Let's see what happens next.

 

The vendor was hesitant, stating that they typically do not sell parts only, that the whole point for them is to do the install as well. Perhaps when I showed them my spyder with removed gearbox, they softened up and agreed to sell the parts. I have been waiting with the order as I have first ordered RSS unadjustable solid bushings from a UK vendor, but as they don't seem to be able to tell me when this could be delivered, I will be ordering the 4RS bushings. First for my spyder and if it improves steering feel, I will put them on the GT3T as well.

 

But if this is now standard on the GT4RS it is no longer a motorsport-only part, is it?