AP Radi-CAL By STILLEN Brake Kit

From the tracks of Le Mans, Monaco, Indy & Daytona and now available for your car, the new AP Racing Radi-CAL by STILLEN big brake kits are the best brake kits on the market. They come with calipers that are 20% stronger and 25% lighter than other comparable brake kits, curve vaned discs in a J-hook or cross drilled and slotted pattern, high performance brake pads, and stainless steel brake lines. Visit our Why Radi-CAL? section for more information about this revolutionary big brake kit.

Learn More About the AP Radi-CAL Brake Kit

Click on the video to get an in-depth description of the features and functions the new Radi-CAL calipers and rotors have to offer. While watching the video, you will also 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.

For additional information on the braking technology used to develop these exceptional kits, please browse the sections below:

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 Radi-CAL by Stillen kit here.

Radi-CAL big brake kit

Brake Technology

AP Racing RadiCAL 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 RadiCAL 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 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 RadiCAL by STILLEN brakes & brake kits.

STILLEN headquarters in Costa Mesa, CA

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

Taming your engine's horsepower is easy for the AP RadiCAL 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.

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