ABT sports brake system 8 piston brake caliper, 380mm brake discs, for all models With a diameter of 380mm, the brake discs have a significantly higher stability as the serial brake. The 8-piston brake calipers grip significantly more than the serial calipers. The provided ABT steel-flex brake lines ensure an optimal pressure point at a consistent pedal force and an easy brake force regulation. ABT brake systems are of course provided with a German TÜV-approval. This sports brake system is ideal for sporty ambitious drivers. ABT sport breake system Ordernumber: 4F0600380VA