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VT – VZ | “Standard Plus” Brake Upgrade

  • Price: $1,774 Supplied & Fitted
  • Model Compatibility: VT-VZ Holden Commodore & GTO
  • Installation Time: 1 day

Why do I need to upgrade?

If you have fitted a wheel/tyre package that has an effective diameter greater than standard, the brake effectiveness is reduced. The force required on the rotor to slow the car increases by approximately 8% per 50mm increase in effective tyre diameter. This means the driver needs to push harder on the pedal to stop, and results in increased rotor and pad wear.

ABS, ESC/DSC or EBD can’t help you under brake fade conditions. The OEM brake systems are designed exclusively for road use and tested to comply with ADR 31/01, which prescribes a fade and recovery test, hot performance where the car is braked from a maximum of 120km/h to 60km/h 15 times with 45 seconds between each brake application. The vehicle must then pass an ordinary performance test” and achieve 75% of the initial cold test result.

If you use your car for any track work, you’ll be driving at much higher speeds; with much less recovery time and braking many more times than the ADR test. The OEM brake system just isn’t required or designed to cope with this.

The vehicle has increased Power and Torque due to other modifications such as Harrop superchargers and camshaft, intake and exhaust upgrades. The faster you can accelerate, the less time you will have to decelerate.

Standard Plus

Our “Standard Plus” Kit has been specifically developed to introduce VT-VZ Holden owners to the most affordable Harrop Performance disc rotor upgrade. The significantly larger rotors offer improvements in overall brake function under normal driving conditions. It combines key strengths and characteristics of higher performance brake rotors whilst utilising the standard OE calipers already on the vehicle to deliver a very economical solution.

Tradesman utilities and towing vehicles benefit from the increased front and rear rotor diameter and surface areas. The front & rear brake load ratio has been engineered into the production of these rotors to maintain the standard brake balance of the vehicle, offering improved brake feel and driving confidence. Front rotor design offers significant improvements in cooling efficiency, stability and durability.

Package Includes

  • 2 x 343x32mm 12-slot Front disc rotors
  • 2 x 332x28mm 12-slot Rear disc rotors
  • 2 x Front Caliper mounts
  • 2 x Rear Caliper mounts
  • 1 x Set of bolts, washers and mounting hardware.
  • 4 x Brake Hoses
  • 2 x Set of Bendix SRT front & rear brake pads
  • 1 x Labour


Minimum 17″ Wheel Size required.

More Information:

Click here to learn how to read a dyno graph.

HPF Warranty

HPF power packages are warranted for the parts and services installed by HPF. Please contact us for more information.

Additional Notes

  • We recommend all vehicles coming to HPF for tuning run 98 Octane fuel. Please contact us if you have a need to use different fuel.
  • Power figures listed are estimated kilowatts at the flywheel based on results typically obtained by HPF on HPF’s dynos. Typically these are based of a manual vehicle with standard driveline and standard wheels and tyres. Actual power can vary based on each specific vehicle.
  • Modifications such as this package require the vehicle to be in excellent mechanical order.
  • We advise against increasing the power output substantially on high kilometer engines, if your engine has in excessive of 150,000kms please contact us to discuss options.
  • Whilst every attempt is made to ensure prices listed online are correct, they are subject to change at any time.
  • Additional parts may be required in some cases depending on the condition of the vehicle. Cost of these parts and additional labor required may incur additional cost.

2 Comments please add yours...

  1. avatar

    How much to get it without installation?

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