Install new master cylinder without bleeding?

But that "immediately" might be the very first time you have to panic brake the car because of someone else's stupidity. I'm just citing common sense that I take to heart. Each individual has the ability to make their own decisions, right or wrong. I've seen countless cars some repairable, some not that had been involved in accidents. I'm not saying it can't be done but I personally wouldn't do it. A safety director once told me "Accidents are just that, accidents but 90% of accidents can be avoided if one of the parties involved had done something different". This isn't a rant, & I mean no harm or slight to anyone, I'm just stating my thought & opinion.