2018 BMW M3 rides too harsh even in comfort mode....

[Alan l.]

Originally Posted by CanAutM3

Unless the OP changes tires, I would not recommend going that low with the PSC2.

The BMW's recommendation for the PSC2 is 35psi front and rear. Running too low pressures on stiff sidewalled R-comp tires on a street driven car will usually result in excessive shoulder wear.

ah i wasn't aware the PSC2 required different tire pressures from the standard PSS tires that comes on the zcp cars.

Either way OP should check if the dealer overinflated the tires over 35psi just in case.