The B&M launch control is a sophisticated device, which installs into your existing brake system. This easily installed solenoid provides the brake holding capacity you are looking for. It can be used for racing or for street applications if you need a hill holder while stoped on an uphill grade. Can be used to hold brakes for up to 60 secs. This high quality solenoid can be used on either the front or rear brakes of your vehicle and can handle pressure spikes up to 1500 psi or maintain constant pressure of up to 400 psi.