AP Racing by STILLEN Radical - Official Brakes fo Bimmerfest 2016

New AP Racing Pressure Forged Radi-CAL Big Brake Kits 25% STIFFER - 20% LIGHTER CALIPERS

From the tracks of Le Mans, Monaco, Indy & Daytona... Now available for your vehicle!

Click on the video to get an in-depth description of the features and function the new Radi-CAL Calipers and Rotors offer

Learn about the heritage of the AP Racing World Radi-CAL Caliper, what STILLEN engineers do to use this bleeding edge caliper technology in developing the best big brake kit available, brake kit options, rotor quality and how to ensure these kits will fit your wheels.

Why Radi-Cal?

Safety and peace of mind are important reasons to upgrade your brake kit. Learn more about why you should consider the AP Racing Radi-CAL by Stillen kit here.

Radi-CAL big brake kit

Brake Technology

AP Racing Radi-CAL by STILLEN brakes are made with the most advanced braking technology available. Click here to read more and learn about this brake system.

AP Racing Brakes BBK


Ready to get a set of AP Racing Radi-CAL brakes by STILLEN for your car? Click here to see the full list of vehicle applications!

AP Racing J-hook Rotor with red 6 piston caliper


Learn where to buy the AP Racing Radi-CAL by STILLEN brake kit. View all authorized retailers here.

AP Racing Radi-Cal by STILLEN 6 pot brake caliper and rotor


Two of the biggest names in performance auto parts have teamed up to create the AP Racing Radi-CAL by STILLEN big brake kit. Learn more here.

Radi-CAL brake caliper manufacturing


We want to hear from you! Click here to get contact information for AP Racing Radi-CAL by STILLEN brakes & brake kits.

STILLEN headquarters in Costa Mesa, CA

Supercharge Your Brake System with the New AP Racing Radi-CAL By STILLEN Big Brake Kit

Taming your engine's horsepower is easy for the AP Racing Radi-CAL by STILLEN brake kit! This BBK was specially designed by two industry leaders, AP Racing and STILLEN, that collaborated together with the same goal in mind: provide you with a high quality brake upgrade that provides the feel of a track braking system for the price of a street legal big brake kit. This AP Racing brake features a low noise, vibration and dust design, which makes it ideal for day-to-day use. Additionally, the brake kit comes includes pressure forged calipers that are 25% stiffer and 20% lighter than comparable casted calipers. For more information on why you should upgrade your car's brake system, please click here.

Back to top