dba's 4000 Series T3 Slotted Brake Discs are high quality single-piece brake discs. They are packed with features designed to make your cars brakes, smoother, more responsive, and more resistant to sustained use.Slotted faceKangaroo paw vent designThree stripe temperature indicatordba's 4000 series T3 Slotted Brake Discs are intended to be a high quality single-piece performance upgrade. They come with a range of features intended to make them stop your car time after time, in all but the harshest conditions.The face features dba's own T3 slot pattern. They have designed this slot pattern for excellent pedal feel, quietness, as well as all the usual advantages of a slotted disc - outstanding performance under hard, sustained braking.dba use their own "kangaroo paw" vent pattern. This has been designed to make the disc lighter and maximise the surface area that can be reached by cold air as it is drawn into the vents.dba's 4000 series brake discs also come with dba's most recognisable f