Upgrading the stock hydraulic lines

[CaliMR]

You clear out the ABS reservoirs. Otherwise if you engage ABS then the old fluid will mix with the new. It won't get all the old stuff out, but enough that it doesn't matter anymore. Dealers usually have as special scan tool that will open the abs circuit but the normal ones won't do it. At least based on other cars I've had, didn't look into it specifically for the Boss.

 

[ace72ace]

Wow, thanks for the info, last time I bled brakes, there was no ABS...