Sale Items are none returnable due to incredible pricing!
These are high Quality Stoptech Slotted Rotors.
One purchase gets 1 Left & 1 Right Rotor: One Pair
This is a factory Size replacement.
284MM X 22MM
BMW Part Number: 34111163135
FRONT
Select 34 11 1 123 072, Brake Disc Set Screw if you want a brand new one. They are common to be stripped out. One selection is for a pair of new units.
BMW 524td 1985-1986
BMW 528e 1982-1988
BMW 533i 1983-1984
Actual Product Pictures:

StopTech® recognizes that great brakes need to look as good as they perform
Performance wheels and tires are best complemented with StopTech® 126 Hi-Carbon Slotted Rotors. StopTech® slotted, drilled and drilled+slotted brake rotors prevent glazing of the pads, add bite and improve wet and dry braking performance. Every StopTech® Rotor is produced from a high quality Centric Parts® blank casting and finished in a durable e-coating for corrosion resistance.
Engineered to look good behind the wheel and perform at the same time
StopTech® 127 Hi-Carbon Cross-Drilled & Slotted Rotors look great behind custom wheels, improve the initial bite of the brake pads, and help wipe away the debris that forms between the pad and the disc. A set of StopTech® rear replacement Sport Rotors is a great way to match the aesthetics of a StopTech® Big Brake Kit.
E-Coated Finish
Most StopTech® Rotors are finished with black e-coating on both sides of the hat, inside the cooling vanes, and on the outside edge. E-coating is a superior electro-statically applied finish designed to withstand 400 hours of salt water exposure without rusting. This is especially important on both mounting faces of the hat where it touches the hub flange and back face of the wheel. Any accumulation of rust in these area can lead to installed lateral run out issues.
Power Alloy Metallurgy
Power Alloy metallurgy is an exclusive feature of many StopTech® rotors. In specific vehicle applications, StopTech works with foundry partners to increase the molybdenum or carbon content of the castings, and to carefully control the cooling rate during production to reach targets for hardness and tensile strength.
Cooling Vane Design
Nearly all StopTech® 1-piece rotors have unique slot or hole patterns for the left and right sides of the vehicle. For these directional patterns, straight vane or pillar vane rotors are used to ensure that a drilled hole never touches a cooling vane.