The Complete 15" Drag Brake Conversion. Engineered by SMG.

Running a true 15-inch drag wheel on the GM Alpha Platform shouldn't require piecing together parts from multiple manufacturers or modifying factory components. The SMG Alpha Platform 15" Rear Drag Brake Conversion Kit was engineered to provide a complete, bolt-on solution that delivers the wheel clearance, braking performance, and suspension geometry serious racers demand.

Designed specifically for the 2016+ Chevrolet Camaro SS, LT1, ZL1, Cadillac CTS, CTS-V, and ATS-V, every kit is built in-house using CNC-machined OEM-based calipers, premium coated rotors, genuine QA1® suspension components, and the hardware required for a professional installation.

Every kit is assembled, inspected, and packaged by the SMG team before shipping.

Why Upgrade?

The factory rear brakes simply weren't designed to accommodate today's popular 15-inch drag wheel packages.

Our conversion kit provides the clearance needed for many of the industry's most popular drag racing wheels while maintaining OEM-style reliability and serviceability.

Whether you're building a dedicated drag car or simply looking to maximize traction at the track, the SMG system provides a complete engineered solution instead of forcing you to source parts individually.

Precision CNC Machined Calipers

Every caliper begins as a quality OEM-based casting before undergoing extensive machining.

Each caliper is:

• Completely disassembled

• Precision CNC machined

• CNC engraved with the SMG logo

• Chemically stripped

• Media blasted

• Powder coated

• Reassembled with new components

The result is a caliper that not only performs exceptionally but looks right at home behind a premium wheel.

More Than Just a Brake Kit

Unlike many brake conversion kits, every SMG system includes our proven Chromoly Double Adjustable Toe Rod Kit.

Benefits include:

• Improved rear suspension stability

• Precise rear toe adjustment

• Better wheel clearance

• Increased durability over factory stamped steel components

• Genuine QA1® rod ends

This isn't simply a brake conversion—it's a complete rear suspension upgrade.

Premium Components Throughout

Every kit includes:

• CNC-machined SMG rear calipers

• Premium coated rear rotors

• Performance brake pads

• SMG Chromoly Double Adjustable Toe Rod Kit

• Grade 12.9 mounting hardware

• Complete installation hardware

Everything needed for installation arrives in one package.

Standard Color Options

Included at no additional charge:

• Satin Black

• Gloss Red

Premium Custom Powder Coating

Want something unique?

Choose from hundreds of premium powder coat colors to match your vehicle or build theme.

Custom colors are professionally applied before final assembly for a factory-quality finish.

Features

• Complete bolt-on rear drag brake conversion

• Designed specifically for 15-inch drag wheel applications

• Precision CNC-machined calipers

• CNC engraved SMG branding

• Premium powder coated finish

• Premium coated rear rotors

• Performance brake pads included

• SMG Chromoly Double Adjustable Toe Rod Kit included

• Genuine QA1® rod ends

• Grade 12.9 hardware

• Built and assembled in-house by SMG

What's Included

• (2) CNC Machined Rear Calipers

• (2) Premium Rear Rotors

• Performance Brake Pads

• Complete Mounting Hardware

• SMG Chromoly Double Adjustable Toe Rod Kit

• Installation Hardware

Vehicle Fitment

Chevrolet Camaro SS (2016+)

Chevrolet Camaro LT1 (2020+)

Chevrolet Camaro ZL1 (2017+)

Cadillac CTS (2016-2019)

Cadillac CTS-V (2016-2019)

Cadillac ATS-V (2016-2019)

Built by SMG

Every conversion kit is assembled in-house by enthusiasts who build, race, and service high-performance GM vehicles every day. From CNC machining and powder coating to final assembly and inspection, every component is carefully prepared before it ever leaves our facility.