We have not tested the durability, as this will add $$$$$ to the cost. Also we do not have the durability schedule, by Ford, to run a proper test, hence any results we may receive from a test would not be relevant. But I can assure you that the 24mm hollow bar is current production on several GM SUV's, so if you can break it in you SVT, then you be buying a whole new car cos you'd have to break your car to break the bar. The bar is 4130 chrome-molly steel which is induction hardened, so it is strong and durable. The end links are the stock ones, but I supply you with new bushings.
The stress in the bar has not increased as the geometry has not changed, henced the increased strength aand torsional rigidty as well as the superior material pretty much ensure you of a quality product.
