dw about that, as long as u dont pull up ur hand brake after tracking thats fine, use a chok to block the car from moving. the rubber wont melt, over time they will blow out meaning that rubber will expand as the temperature gets hotter. this will lead to spongey brakes under heavy braking. sometimes using a higher rated temp fluid will make this better but i'm sticking to the genuine fluid in my car. with these i'm not sure ow the zre corolla rubber brake hoses are designed... i'll ask my supplier and see if he can get some but i dont think they have made them yet for the new zre corollas.