I have a 75Z car. I want to update/upgrade some components on my car for a 2000 mile roadtrip. I have mostly used MSA for my parts but I am comparing Rock Auto parts to MSA. They are a good bit cheaper. I am mainly talking things from radiator, brakes, hoses, and other smallish items. I have pretty much decided I will buy performance brakes from MSA but other things I am not sure of. I hesitate trying them so I am curious what your experiences have been.