not that i know of...the 7th gen celicas are still basically too new to require this (heck, evne older cars don't require this).
why do you think you need a new ebrake? just fyi: it's normal for your car to be able to be pushed back & forth (with some effort) when your ebrake is up and your car is in neutral. it's normal in almost all manual cars.
if your parked on a relatively flat surface, your ebrake should be fine. on any incline, you obviously have to 'put it into gear' and use the ebrake to prevent a rollback