HI,
Frequent lurker here.
Opinions wanted on to use or not to use. I've had leaky check valves,questionable boosters,causing all sorts of braking/engine performance issues.Have had the line plugged for last rew races....increased effort,and heel/toe is tougher to acomplish.
With or without?
Who does who dosen't?
Why?

BTW,"inhaling"/testing brake boosters for leaks in the junk yard can result in some strange head aches,yeow! MityVac next time

David Spillman
#18 240Z