Review on Raybestos MC390258 Professional Master Cylinder by Roderick Carson

As a result of my tests, I determined that this master cylinder fails TO deliver reliable braking power .The installation process was unnecessarily complicated and time-consuming, and the resulting performance was not worth the effort. On the upside the price is on the lower end of the scale for brake system replacements. Overall, I cannot recommend this product as it jeopardizes the safety of the driver and passengers..