The Hack Pack Steel Brake Upgrade Kit

The Hack Pack Steel Brake Upgrade Kit

380 mm / PFC / No brace
$6,320.00
$6,320.00 $6,539.00
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The Hack Pack Steel Brake Upgrade Kit
  • The Hack Pack Steel Brake Upgrade Kit
  • The Hack Pack Steel Brake Upgrade Kit
  • The Hack Pack Steel Brake Upgrade Kit
  • The Hack Pack Steel Brake Upgrade Kit
  • The Hack Pack Steel Brake Upgrade Kit
  • The Hack Pack Steel Brake Upgrade Kit
  • The Hack Pack Steel Brake Upgrade Kit
  • The Hack Pack Steel Brake Upgrade Kit
  • The Hack Pack Steel Brake Upgrade Kit
  • The Hack Pack Steel Brake Upgrade Kit
  • The Hack Pack Steel Brake Upgrade Kit
  • The Hack Pack Steel Brake Upgrade Kit
  • The Hack Pack Steel Brake Upgrade Kit
  • The Hack Pack Steel Brake Upgrade Kit
The Hack Pack Steel Brake Upgrade Kit

The Hack Pack Steel Brake Upgrade Kit

$6,320.00
$6,320.00 $6,539.00
Front rotor size
Brake Pads
Master Cylinder Brace

An essential upgrade package for your Plaid.  

This kit combines the best components from leading manufacturers, with each part selected as the best available option and bundled together for a complete, convenient package. It also raises the top speed limiter to 203 mph.  I've run multiple brake configurations and this is the winning combination for performance and value.  

Delivers stronger, more consistent braking performance while reducing rotating unsprung mass.  This improves performance on both the drag strip and road course.  

Improve your 60-130 and 1/4 mile times.

Includes Track Pack firmware to unlock a 203 mph top speed and further refines suspension and ABS behavior.

This is a great setup for 1/2 mile racers.     Video demonstration


Kit includes:

  • MPP GiroDisc 380mm front steel rotors (400mm optional)
  • MPP GiroDisc 365mm rear steel rotors
  • Compatible with Signature and Project12 'Drag Pack' wheels 19"/18"
  • PFC high performance front pads (Pagid option)
  • PFC high performance rear pads
  • Stainless steel braided brake lines
  • DOT4 master cylinder cap
  • Castrol SRF brake fluid (1 L)
  • Track Pack Firmware (remote installation)
    • Top speed limiter is raised to 203 mph (proper wheels, tires, etc. required) – for track use only
    • ABS calibration is refined (re-tuned modulation)
    • Suspension maps are refined
  • Castrol SRF brake fluid (1 L)
  • Laptop to Tesla cable
  • S Plaid February 2022 - 2026

  • S Plaid vehicles built from 2021 through February 2022 require special equipment. SirHarrold will loan this equipment with a refundable deposit.

Options

  • GiroDisc 400mm front rotors - Does not fit with OEM 19" wheels - Fits with Signature 19", OEM/Aftermarket 20"+  400mm ront pads are out of stock as of 7/10/26, more in mid-late July
  • Pagid RSL1 Brake Pads - The best street/track pads that I've used.  Long life, low dust.  Pagid front pads are out of stock as of 7/10/26.  Preorder is FIFO. 
  • MPP Master Cylinder brace - Reduces cylinder movement for improved pedal feel and response

Vehicles manufactured between February 2021 and February 2022 require the special equipment. It will be loaned to those in USA for a deposit.  EU installations on 2021-February 2022 require special coordination.  DM @sirharroldbahls on IG for more information.  

A 64 bit Windows computer is required.

High-speed driving involves significant risk and should only be performed in controlled track environments. Proper tires, wheels, braking systems, and fluids are essential for any high-speed operation, and all equipment should be thoroughly inspected before every pass. Even with the correct equipment and precautions, operating a vehicle at high speeds remains inherently dangerous. SirHarrold does not represent or imply that this kit makes high-speed driving safe. By using this product, the user acknowledges and accepts all associated risks.

Installation of the Top Speed firmware changes the brake pedal feel. The brake pedal will have less of the factory on/off feel and increased pedal travel. Full braking performance remains available, but achieving maximum braking force requires pressing the pedal further and with more force than in the factory configuration.

Drivers should familiarize themselves with the revised brake pedal feel in a safe environment before operating the vehicle at high speeds or on a race track.

 

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