Spiegler Stainless Brake lines - Porsche 987 Boxster & Cayman Front and Rear 4 Line KitSpiegler 100% stainless brake lines for Porsche 987 Boxster & Cayman. Front and Rear 4 Line Kit does not replace the OEM caliper hard lines on either axle, only the soft lines. If you are running a caliper stud kit, and or would like to easily remove the calipers without opening hydraulic connections, please purchase our Front and Rear 6 Line Kit instead. If you have previously purchased a 4 Line Kit, you can replace the front caliper hard lines and