For those that understand, the early 3 Series were all about a light-weight, balanced chassis. The cars developed a cult-like status amongst enthusiasts due to their driver involvement and sheer fun they can provide. Confidence in their braking ability has always been a key ingredient to the 3 Series recipe, too. But when the rotors wear down, the braking performance of the vehicle diminishes. We recommend replacement discs from Zimmermann, an OEM supplier to BMW. Made in Germany to the highest standards, these discs are the perfect replacement for daily duties or more spirited driving situations. Priced by the pair.