Rear Stoptech Slotted Rotors - Set of 2 Rotors B8 S4 | S5


Part# 126.33137SL-R

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Does This Fit Your Car?

StopTech recognizes that great brakes need to look as good as they perform. Performance wheels and tires are best complemented with StopTech SportStop Cross-Drilled

Every SportStop brake 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

SportStop cross-drilled rotors (prefix 128) 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 SportStop cross-drilled rear replacement rotors is a great way to match the aesthetics of a StopTech Big Brake Kit with the cross-drilled rotor option.

Power Slot Cryo

Power Slot rotors are also available with an optional cryogenic treatment called Power Slot Cryo?. Although cryogenic treatment is invisible to the naked eye, many of Power Slot's fleet customers are sold on its ability to extend the wear life of the brake disc. Deep cryogenic treatment is a one-time process that permanently improves the performance and service life of metal components, from brake rotors and engine parts to machine tools and gear sets. Using a proprietary, computer-controlled process, the metal is cooled to -300F before gradually being heated to +300?F, and then slowly returned to room temperature as the final step.

E-Coated Finish

Every SportStop

rotor is finished with black e-coating on both sides of the hat, inside the 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 exclusive feature of Power Slot?and SportStop rotors. In specific vehicle applications, StopTech works with foundry partners to increase the molybdenum or carbon content of the cas ings, and to carefully control the cooling rate during production to reach targets for hardness and tensile strength.

Cooling Vane Design

Nearly all SportStop cross-drilled and drilled + slotted rotors have unique drilled 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.

⚠️CALIFORNIA WARNING: Cancer and Reproductive Harm -

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