Feature 1The stainless steel valve assembly can achieve excellent corrosion resistance, and the electric coil is completely sealed in epoxy resin to improve reliability. 2The finned housing can help to dissipate heat, and wide, lightweight base for better mounting stability. 3Package includes all the installation accessories you may need, which is very convenient. 4Comes with an extra threaded port for brake line pressure gauge, which has good practicability. 5Made of high qualiy material of aluminum and stainless steel, which makes it durable and have high reliability.Item Type: FrontBrakeLineLockKitMaterial: Aluminum+Stainless SteelModel: Roll Control Hill Holder KitVoltage: 12-24V DCLine Lock Type: ElectricInlet Attachment: Female ThreadsOutlet Attachment: Female ThreadsInlet Thread Size: Approx. 1/8-27 NPTOutlet Thread Size: Approx. 1/8-27 NPTLine Lock Outlet Quantity: ThreeLine Lock Inlet Quantity: Only OneMounting Style: Bolt-OnSolid or Vented Rotor: SolidRotor Style: Dimpled+Drilled+SlottedSuitable for: Disc+DrumPlacement on Vehicle: FrontCaliper Finish: AnodizedDescription:These evil energy line lock kits are used for drag racing to lock the front tires of the car. This decreases the chance of your car rolling through the lights before it's time. Also locking the front wheels produces a more efficient burn-out to heat up your tires. Extensive testing has shown a 10-millisecond release time with vibration resistance up to 30-G's with no mechanical failure. On the street or off-road, the evil energy line lock can also be used as a temporary electronic parking brake when both the clutch and brake are needed at the same time. Kits allow you to lock your front or rear brakes at will.This launch control is a sophisticated device that installs into your existing brake system. The 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 stopped on an uphill grade. This high quality solenoid can be used on the front brakes of your vehicle. It can handle pressure spikes up to to 3000 PSI line pressure. Include light and switch.Control to make the front and rear brakes synchronized. Hold the brake pressure to the front or rear brakes to hold the vehicle on a hill or the starting line at the drags. Easy to do a burn out by locking the front tires and releasing the back brakes with this system. Works with 12 - 24VDC electric systems.Application Summary:Used in Drag racing to positively lock the front wheels, producing a more effective burnout. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Brake Line Lock1 x Series Fuse Connector1 x Indicator Light1 xSwitch3 x Mounting Screw1 x ManualNote1. This item is high quality aftermarket replacement but not original.2. Please kindly confirm the fitment before ordering to make sure this item is perfectly fit.3. Easy to install, but professional installation is recommended.