1. how hard is it to repalce a break line form the master cylinder back to the rear breaks on a 88 CRX Si?
2.how much would the new line cost

 

MC goes to the Proportion valve, then goes to the back.
To me by judging the looks of it. the MC to the valve looks hard.
And the Value to the back looks pretty easy.

 

if you have the bending tool, flaring tool, and everythings taken off so you can get to the lines, its not too hard. but to run the lines to the back you need to pull the interior back on the passenger side and stuff.