Its pipe. Its not hardmounted cuz it wasnt only made for my car. The guy made 5 sets for me that I used to sell. for some cars the bar would touch the TB so it needs to be bendt a little more. with movable joints you have the option to slightly modify the strut bar to make it fit right. sure hard mount might be better but believe me, these bars are pretty tough, the guy who made these builds drift and rally cars.