[z3papa]

Once you go with the diff, be forewarned the impact is so big you chase your tail a little bit. The first year, the best description was two steps forward, one back. Now, the adjustments are far more predictable. My approach is to make each end of the car corner/put power down as best they possibly can. Some people approach setup where they want the front and rear to be exactly the same so they dumb down the end of the car which is working to match the weaker end. Don't do this.