|Rally driving, drifting and off road motorsports requires extensive use of the handbrake, this can show weaknesses in standard cable type handbrakes which a hydraulic system eliminates.
The hydraulic system connects into the brake line that runs to the rear calipers and requires a lot less force to completely lock both rear wheels when needed.
A hydraulic handbrake is used by drivers to lock up or break loose the rear wheels when they want to drift the car sideways or spin on the spot. Rally drivers regularly need to spin 180 degrees "on the spot" when they over shoot an intersection, or need to turn very hard left or right and there's not enough wheel lock to achieve this.
These systems are designed for competition use.
A hydraulic hand brake can be fitted in place of the original unit, but are more often fitted as an additional unit as they can be added into the rear brake line system without changing the original mechanical handbrake setup.
You may wish to consider installation along with a brake bias valve as here.
Please note that professional installation is required. As with most car parts it is supplied without instructions, as fitment would depend on your precise application. With regret we are unable to answer questions or give technical advice about the precise suitability of fitment to your project or foresee all the issues that may arise in individual applications.