Product Description Front brake pads (does both front calipers) for your E30 325e/es/i/is/ix/C and 318i. You have a choice of either a semi-metallic pad compound or a ceramic pad compound. Ceramic pads will be quieter and not produce as much dust, but Semi-Metalic offers better stopping performance during spirited driving. When changing brake pads you also need to change the wear sensor. Brands of pads provided will vary, but all meet or exceed our standards and are classified as OE-Equivalent.