Hawk Performance ER-1 Brake Pads for 2015-2020 MUSTANG - HB903D.604
Part Number: HWK-HB903D-604
Hawk Performance ER-1 Brake Pads
Brake Pads, ER-1, Ferro-Carbon, Front, Ford, Set
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Estimated Ship Date: Oct 23, 2026 Would you rather pick it up?
Overview
Hawk Performance ER-1 Brake Pads
The newest addition to the Hawk Performance Motorsports brake pad catalog is ER-1, an ideal compound for a broad range of the most intense sports car events. The new, proprietary endurance racing brake pad marks an extraordinary leap forward in the racing friction market for Hawk. Specifically engineered for endurance racing, ER-1 is designed to offer Hawk's trusted stopping power, hour after hour. The well-rounded nature of this motorsports brake pad compound delivers ideal modulation and pedal communication, providing a new option not just for endurance racing, but dirt and Circle Track, HPDE, time trials, and even spring racing. Research and development is paramount to Hawk's ongoing strategy, with rigorous testing performed on in-house dynamometers—as well as under the most grueling and diverse conditions in motorsports, across a wide range of vehicles and environments. Hawk engineers worked with some of the best racers and teams in the U.S., and refined the components of this compound to create the optimal recipe that delivers the most ideal endurance pad on the market today.
ER-1 comes to the market with a wide thermal range, groundbreaking torque consistency, excellent modulation, and unmatched lifespan:
* Specific emphasis on modulation, release, and pedal communication
* Ideal for light- to medium-weight vehicles in endurance racing, HPDE, track day events, time trials, and more
* Superior pad and rotor wear
* Consistent medium to high friction
* 400-1600 degrees F operating temperature
* 700-1,100 degrees F optimal temperature range
Endurance racing is becoming more and more available in today's motorsports schedule, both professionally and on a grassroots level. Racing a car for 8, 16, or sometimes 24 hours straight brings an entirely new set of challenges to both the driver and the vehicle. Hawk developed ER-1 to solve the brake pad part of that equation—and in doing so, they created a pad that is also ideal for a variety of other motorsports applications. ER-1 is the first brake pad compound in aftermarket to meet the vigorous pad and rotor wear rates demanded to compete in endurance racing, without sacrificing performance. With a coefficient of friction above .45μ, over a 1,600 degree F range, ER-1 still provides the immense stopping power customers have come to expect from Hawk Performance. Order the brake pad set recommended for your vehicle.
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