I bought one at the end of last least and filled it with some vents, so I didnt have a chance to actually use it/roll my sled with it, but from what ive seen they are flexible as HE11, I dont see it breaking easy or anytime soon. If your running a turbo though you want as many vents as you can get, so not wanting to fill it with vents might not be the best idea... Cover that thing till you can see holes through it in every direction! If you use their vents also it helps add some stiffness to the hood itself, your not actually sacrificing strength by drilling holes in it. Keep in mind the hood comes from the factory with not one hole it in, you cant use your stock headlights, intake, ect. So I definitely recommend at LEAST a headlight vent.