Case of what? Was there an vehicular accident, damage and injury? Because if you think you have a case because of an inferior aftermarket product that is clearly stated not for street use (if I recall correctly), you won't have anything but hurt feelings. Just saying!
Live and learn... Not everything is as advertised. And unless malfeasance can be proved, which is next to impossible... And ... And I say a BIG "AND" there is some sort of damage/injury, you MIGHT have a case.
That said, I have no investment in defending ZZP, just pointing out how things work... So save your time and efforts. If anything, bust their balls until you get new ones or replacement stock. That's about all you'll get.
Have a nice day.