I bought a master pro coil a few years ago because it was the only one in stock & I was away from home and mine went bad. Didn’t last. I took it back to Oreilly and asked for a Standard. They ordered one for me. When it came in I pulled it out of the box & it was the same exact coil!
I bought a more expensive chrome one & it has lasted good.
I went to Napa, to buy a Standard volt reg ,for a much higher cost,( for 26 bucks, since I didn't want China) damn thing was China. Blew out in a few months. Ended up w/ the USA Mopar one after
