Our E30 25mm (25.4mm) brake master cylinder was originally designed for the E30 M3 to offer a 14% increase in brake pedal firmness for better modulation. We now have a E30 Non-M version(Except Xi models) available. Replaces the stock E30 M3 23.8mm master cylinder to increase brake pedal sensitivity and decrease travel. E30 325 stock specs differ but this can still be a great upgrade for E30 Non-M drivers looking for a extra-firm pedal and/or have incorporated a larger brake kit.OEM or Aftermarket master cylinders are available. Custom fitted brake line is included with M3 fitment. Custom fitted line is not necessary for non-M E30 fitment.
BMW Fitments: 3 SeriesE30 (1987-1991) > M3