Metallurgy

Quiet Slot™ rotors are cast from a proprietary formulation of premium alloys producing a superior performance street product.

• Noise dampening steel formulation.
• Long grain carbon iron for maximum thermal stability.
• Molybdenum additive for high temperature strength and thermal crack resistance.
• Unique alloy blend provides exceptional rotor life and durability.

Design

Quiet Slot™ rotors combine the look, feel and durability of a true performance rotor with the fitment and convenience of OE design.

• Performance design – Direct OE replacement recommended for street use only.
• Unidirectional vanes eliminate the need for left and right side rotors.
• Optimal rotor vane and wall thickness improves structural strength, noise dampening and heat capacity.
• OE style vane design combined with increased heat capacity dramatically improves brake pad and rotor life.

Quiet Slots

Hawk Performance® Quiet Slot™ rotors feature a unique slot design specifically engineered to improve your car's braking performance and driver comfort.

• Increases initial bite.
• Improves wet weather brake performance.
• Effectively removes gas and wear debris.
• When the brakes are not engaged, the Quiet Slot™ rotor vane and surface slot design effectively cuts through the surrounding air flow virtually eliminating the "whirling" noise typically encountered with cross drilled or heavily slotted rotors.
• Visual wear indicator. Rotors should be replaced when slots are worn down and no longer visible.
• Optimizes overall brake performance.

Surface Finish

• Swirl ground surface for improved brake pad bed-in and "green" out of the box performance.
• Specific RMS finish accelerates the creation of a proper transfer film when run with Hawk Performance® brand brake pads.
• All rotors are finished with a GEOMET® coating that protects both the internal and external surfaces from rust and corrosion.

Quality

All Quiet Slot™ rotors are meticulously checked for proper balance, thickness, flatness and runout. All rotors are manufactured in ISO certified facilities.

Environmental Benefits

CHROMIUM-FREE- Does not contain any chromium (NO HEXAVALENT and NO TRIVALENT). GEOMET® meets the following regulations:

• Environmental Protection Agency (EPA)
• Occupational Safety and Health
• Administration (OSHA)
• DaimlerChrysler CS-9003
• General Motors GMW 3059
• Ford WSS-M99P9999-A1 (Hex 9)
• EU Directive on End of Life Vehicles NO TOXIC METALS- Free from nickel, cadmium, lead, barium, and mercury.

What is GEOMET?

GEOMET® is a proprietary water-based coating dispersion containing metal oxides, metallic zinc and aluminum flakes. The zinc and aluminum platelets align in multiple layers forming a metallic silver-gray coating. Applied as a liquid, the coating becomes totally inorganic after curing at 575-600° F (300-315°C).