*Grinding for clearance is required! If you select the AAD Toe Arms upgrade, the only grinding required is to the sway bar mount for 15-inch wheel clearance.* *Some wheels may require more grinding than others*

Only fits SRT spindles. DOES NOT FIT RT CARS.

What’s Inside:

• Wilwood 4-Piston Gray Calipers 
• High-performance Wilwood brake pads
• Rotor Options: Slotted Rotors or Smooth Rotors
• Stainless Brake Lines
• Custom Billet Aluminum Brackets and Hardware
• Optional: Custom Sway-Bar Links
• Optional: AAD Rear Toe Arm Links
• Optional Brake Caliper upgrade colors: Red or Black
• Installation Instructions

This rear brake conversion kit fits all SRT HEMI Challengers, Chargers, 300s, and Magnums from 2005 to present.

The Dusterhoff Racing 15-Inch Rear Brake Conversion Kit is designed for serious Gen 3 HEMI drag racers who want to make room for 15-inch rear racing wheels and tires on compatible SRT-platform Challengers, Chargers, Chrysler 300s, and Dodge Magnums. Built around Wilwood 4-piston calipers, the conversion replaces the bulky factory rear brake arrangement with a performance-focused package engineered to provide the clearance needed for a proper 15-inch drag setup. The kit includes custom billet aluminum mounting brackets and hardware, stainless steel brake lines, Wilwood brake pads, and your choice of smooth or slotted rear rotors, giving you the major components needed to complete the conversion. Calipers are available in gray, red, or black, allowing the brake package to complement the rest of the vehicle while maintaining a clean performance-oriented appearance. For Gen 3 HEMI owners chasing improved launches and better sixty-foot times, the DT 15-Inch Rear Brake Conversion opens the door to the additional tire sidewall and drag-oriented wheel combinations that become increasingly valuable as horsepower and traction demands rise.

The biggest reason to perform this conversion is wheel clearance. Factory SRT rear brakes limit the ability to run smaller-diameter drag wheels, while Dusterhoff Racing developed this kit specifically for racers who want to fit 15-inch racing wheels. Moving to a 15-inch rear wheel allows racers to take advantage of drag tire combinations with substantially more sidewall than typical factory-size performance tires, giving the tire more ability to work during a hard launch.

The package uses Wilwood 4-piston rear calipers paired with Wilwood brake pads, providing a proven performance-brake foundation for the conversion. Buyers can choose between smooth rotors as the standard configuration or upgrade to slotted rotors. Stainless steel brake lines are also included for durability and consistent brake-system operation, while the custom billet aluminum brackets and supplied hardware make the system specific to the intended Mopar platform rather than relying on improvised universal components.

Dusterhoff Racing also offers optional custom rear sway-bar links and AAD adjustable billet rear toe arms with the package. The AAD toe arms are designed with drag racing and 15-inch wheel clearance in mind. When the AAD arms are selected, Dusterhoff Racing notes that grinding is still required at the sway-bar mount to clear 15-inch wheels. Some wheel designs may require additional grinding, so final clearance must always be verified during installation.

Fitment is critical with this conversion. The kit is designed specifically for SRT spindles and does not fit R/T cars. Dusterhoff Racing lists compatibility for SRT HEMI Challenger, Charger, Chrysler 300, and Magnum applications from 2005 through the supported model-year range.

For high-horsepower Gen 3 HEMI cars moving toward a dedicated street/strip or drag racing setup, the Dusterhoff Racing 15-Inch Rear Brake Conversion provides the foundation needed to run a serious rear drag wheel and tire combination without piecing together a brake system from unrelated components.

Looking for additional upgrades? Browse our catalog!

Specifications & Features

• Brand: Dusterhoff Racing
• Product Type: 15-Inch Rear Brake Conversion Kit
• Brake Calipers: Wilwood 4-piston rear calipers
• Caliper Colors: Gray, red, or black
• Brake Pads: Wilwood performance brake pads included
• Rotor Options: Smooth standard rotors or optional slotted rotors
• Brake Lines: Stainless steel brake lines included
• Mounting Hardware: Custom billet aluminum brackets and required conversion hardware included
• Wheel Application: Designed to provide clearance for compatible 15-inch rear racing wheels
• Vehicle Compatibility: SRT HEMI Dodge Challenger, Dodge Charger, Chrysler 300, and Dodge Magnum applications
• Year Compatibility: Dusterhoff Racing lists model years from 2005 through 2023 in the current product data
• Spindle Compatibility: SRT spindles only
• R/T Compatibility: No, does not fit R/T spindles
• Engine Compatibility: Platform-based, intended primarily for applicable Gen 3 HEMI SRT performance models
• Weight: 25 lbs listed product weight
• Dimensions: Not specified
• Color: Caliper color selectable; other components vary by material and finish
• Optional Sway-Bar Links: Available
• Optional AAD Rear Toe Arms: Available
• Clearance Modification: Grinding is required for 15-inch wheel clearance, and the amount required can vary by wheel
• Intended Uses: Drag racing, street/strip builds, 15-inch drag wheel conversions, high-horsepower Gen 3 HEMI builds, and improved rear tire selection
• Installation Difficulty: Advanced
• Professional Installation: Recommended
• Fitment Note: Confirm SRT spindle configuration, wheel specifications, suspension components, and available clearance before ordering. The kit does not fit R/T cars.