Product Description

VTT “GC” Rear Drag Brake Kit

A90 / A91 Toyota Supra (2020+)

Looking to make your A90/A91 Supra faster in the 1/4-mile or 1/2-mile?

Want to run 17″ or even 15″ rear wheels with only minor suspension modification?

Want to drop over 35 lbs of unsprung weight from the rear of the car — without breaking the bank?

The VTT “GC” Rear Drag Kit is engineered specifically for straight-line performance. This kit allows you to run the wheel and tire combo you need to lower ETs while putting your Supra on a serious weight reduction program compared to the factory steel rear brake setup.

True Plug-and-Play Design

This is a complete bolt-on system utilizing genuine VTT components:

• VTT 4-Piston Caliper

• VTT Custom Cast HD Rotor (Spec 37)

• VTT CNC 7075 Rotor Hats

• VTT CNC Brackets

• DOT-Approved Brake Lines

• VTT Street or Race Brake Pads

• Brake Sensor CEL Eliminator Harness

• M12x1.5 Suspension Arm Bolt

Pads:

• 4-Piston Dynapro Pad Style 7812

• 6-Piston Dynapro Pad Style 6712 (varies by configuration)

Many aggressive brake pad compounds are available from multiple manufacturers, allowing you to tailor braking performance to your application.

15” Wheel Clearance Notes

To run 15” rear wheels, you must:

• Slightly modify one section of the factory knuckle

• Run SPL Rear Traction Links

SPL Link Reference:
https://www.ecstuning.com/b-spl-parts/rear-traction-links/spl-rtr-g29~spl/

Weight Savings

Per Side Comparison

OEM Rear Steel Setup:
32.2 lbs per side (64.4 lbs total)

VTT GC HD Kit:
14.6 lbs per side (29.2 lbs total)

✔ 35.2 lbs total rear unsprung weight savings

If paired with our VTT Front Drag Kit:
✔ Up to 96.9 lbs total unsprung weight reduction

Component Weights (HD Spec 37)

• Rotor: 9.0 lbs

• VTT 4-Piston Caliper: 3.6 lbs

• Rotor Hat: 1.0 lb

• Pads (per side): 1.0 lb

Variations Available

HD Version – Designed for:

• Normal street driving

• Drag racing duty

This is not a road racing brake system.

Important Notes

• This kit does NOT retain the factory parking brake.

• You will lose rear parking brake functionality.

• A dash warning light will be present.

• This is considered a race-oriented kit.

Bedding Procedure – CRITICAL

Brake pads must be properly bedded to achieve full braking performance.

Failure to properly bed pads may result in:

• Only 30–50% braking effectiveness

• Pad glazing

If glazing occurs:

• Remove rotors

• Sand pads

• Re-bed correctly

Your kit includes a bedding procedure card. Follow it precisely.

Disclaimer

HD kits are designed for limited street use and drag racing only.
Never use this system in heavy braking environments such as road racing or Auto-X.
Always operate your vehicle within your limits.