The question is how much better will the car put power to the ground with a diff. I know it made a big difference in my 07 st if anyone was at FF11 and saw the red sedan run the big difference between gray car and mine was the I had the diff and street tires and he had and open diff and street tires. Yes the new ST has tq vectoring but it just grabbing the brakes and putting less power to the ground.
My rides a 2002 SVT track car, & Boosted 2007 ST with the SAP.
The helmet has a special meaning for many drivers. How important is it to you? - It protects my head.
Do you have any special rituals when the helmet is concerned like many have? - I wipe it so that I can see better.