Cusco’s high-pressure radiator cap operates at 1.3kg/cm2 at zero atmospheric pressure. In theory, the atmospheric pressure of the road surface (approximately 1.0kg/cm2) is added and the pressure is 2.3kg/cm2.

Radiator Cooling Plate

The radiator is cooled by air passing through the fins on the core, unfortunately there is a gap between the top of the radiator and the upper support. This gap will allow air that could be cooling to escape over the top of the radiator. The radiator cooling plate eliminates this problem by directing the air through the radiator, rather than over. By increasing the air passing through the radiator, coolant temperatures are kept down on track runs as well as continuous high speed drives, which helps to prevent over-heating.

The cooling plate is made of lightweight aluminum and bolts on in minutes using standard hand tools. It comes finished in a Cusco blue color.

*2002~ Subaru Impreza applications ONLY are offered in your choice of blue or silver.

Turbo Heat Shield

Help lower your engine bay temperatures with the Cusco turbo heat shield. Made of stainless steel, this shield will not rust over time. Laser cut for an exact fit, the heat shield bolts on in minutes using standard hand tools.

*Designed to fit the OEM turbo, may not fit aftermarket ones.
**The silicon throttle body coupler is optional ONLY on the WRX/STi kit.

Reinforced Radiator Hose Kit

The Cusco radiator hose kit is another excellent addition to the prevention engine overheating. The reinforced material is strong enough to resist hose collapse during high-rev, high-speed runs even with the thermostat removed. You can see the difference between the Cusco hose kit versus other standard inferior hoses.

Intercooler Water Spray Controller

Intercooler water sprayer, a great addition to today’s turbo charged cars. Unfortunately, sometimes it is not only difficult to push the button during hard driving but sometimes unsafe. That is where Cusco steps in. The Cusco unit allows the user to set specific intervals and rpm levels for the water sprayer to turn on and off. Whether you want a continuous spray for 30 seconds, an interval of one spray every 7 seconds, or a combination of different numbers, this controller has it covered to keep your intercooler temperatures down to a minimum.
If you don’t have a factory water sprayer, no worries. You can wire the controller to utilize the windshield washer reservoir/pump to act as one. Cusco also offers a nozzle kit to work in these situations that is sold separately.

Another feature of the controller is with the optional nozzle kit, the radiator can be sprayed as well, at the same timing of the intercooler.

For special wiring, always have a trained technician install it.