For the last few years I have been autocrossing my 911. I am now thinking of upgrading the bars to something like 21/28 or so. Lately I have been driving on BFG Rival S tires, and also have a set of Toyo RR which I use. The shocks are Bilstein sport, which I've read may need revalving if the bars are upgraded?
Otherwise the car is certainly enjoyable as as, just not quite as competitive as I think it could be.
Here's a photo of this car's body roll, this location isn't a high speed venue:
