I keep 2 spare tubs, 2 front subs and 2 rear subs on hand all the time. It has not warped or tweaked to date. I have broken a rear sub chassis and a front with a head on and not tweaked the tub. My son has torn both ends off the car twice and broken the ESC protector on the side of the tub, but tub is still intact and has not tweaked. I have not replaced a tub. I do and have wished for stronger front and rear sub chassis as they get damaged more from a heavy side impact than front or rear heavy impact. My son drives his like a Traxxas Slash and it holds up great. I should take a film. He makes his car look like something out of the Dukes of Hazard going airborne all the time.