It's essentially a shorter shock conversion kit. It is designed to be used with the stock shocks, with shorter shock ends, which allow to run 5.5mm shorter shock towers.
You won't be able to run higher than 1b roll centers properly, but with all our testing the car works best with 3A and 0B roll center blocks. The shorter shocks increase reaction time and generate much more corner speed. The on power steering is pretty obscene with the shorter shocks. So much so that I am finally liking a gear diff with 1 million cst oil to reduce some steering.