I tried other brand brake pads with Pep Boys' service, when I was back in college. Just lazy me and save some money. The 87 325i worked great w/o way too much of technology. However, the 97 318ti repelled the cheap pep boy brakes, push my foot back right @ the panic moment and did not perform the ABS and the traction control. Almost got myself into accidents! I finally took it back to dealer and they put the bimmer parts in for me. Works great ever since! I use original part for everything from then on, even the car wax, except some rice stuffs!
That's why I keep saying that each car has their own personality!