Are you running disc brakes? If so, I would strongly recommend running an 8 inch dual diaphragm booster. If not running discs, i would highly recommend running them.
As for CPP, i don't have anything nice to say about them. When you have a problem, they suddenly get very stingy. It is frustrating because they "guarantee" every part they sell for life. If you have a problem, however they try to make you buy another part.