One of the most commonly overlooked aspects of building an efficient, powerful and reliable engine is how to keep it all properly cooled. Since the majority of cars in the world are water-cooled (versus the less common air-cooled method used in certain German cars), we wanted to show some of the best radiators, hoses, air diversion plates and cooling additives available to help keep your car running where it ought to be.
DEI
Radiator Relief
This proven coolant additive reduces operating temps by up to 30 degrees Fahrenheit. Formulated with a corrosion inhibitor that reduces mineral deposits, Radiator Relief is actually the first additive that maintains pH levels that would otherwise fluctuate over time and lead to core damage.
800-264-9472
designengineering.com
Royal Purple
Purple Ice
This high-performance synthetic coolant additive from Royal Purple reduces coolant surface tension and improves heat transfer. Additional protection against rust, scale deposits, corrosion and erosion are also benefits of using this popular additive.
888-383-6300
royalpurple.com
Spal Fans
High Performance Fans
Every SPAL fan is individually balanced for long life and most feature sealed waterproof and dustproof motors. SPAL also has a variety of products that offer high-performance, critical fitment and even curved blades that aid in noise reduction and maintain solid efficiency.
515-289-7000
spalusa.com
Mizu
All-Aluminum Radiator
All Mizu aluminum radiators are hand-welded using the highest grade aluminum with increased radiator core thickness, fin density and utilize two to three radiator cooling rows as opposed to one, maximizing cooling efficiency. These rads are a direct OEM fitment, with no cutting or modification necessary.
888-696-4981
mymizu.com
Stillen
370Z Race Oil Cooler Kit
An oil temperature reduction of 30-40 degrees Fahrenheit can be realized with the installation of Stillen's specially designed oil cooler kits. These kits allow hot oil to be circulated and cooled outside of the motor through a high-efficiency cooler. Thousands of miles of engine life can be added by keeping a cool coating of oil on high-wear engine components.
866-250-5542
stillen.com
Mizu
Electric Fans
Mizu electric fans have a unique slim design to mount flush against the radiator and are engineered to keep your car running cooler by increasing fan spinning speeds, therefore increasing airflow to the radiator.
888-696-4981
mymizu.com
Samco Sport
Silicone Sport Hoses
All Samco Sport hoses are made by hand in the UK and meet or exceed the requirements of SAE J20. Samco Sport hoses are made from the finest European silicone, and the light blue SamTek lining used on all hoses has delivered outstanding resistance in the harshest environments over the last 12 years. Many applications, specific bends, widths and sizes are available.
44 (0)1443 238464 (UK)
samcosport.com
Redline
Water Wetter
Designed for modern aluminum, cast iron, copper, brass and bronze radiators, the Redline Water Wetter has become synonymous with getting coolant temps down in a pinch. Reliable and trustworthy, this wetting agent can reduce temps by up to 30 degrees Fahrenheit.
800-624-7958
redlineoil.com
CBRD
Performance Radiators
Chad Block Racing Development performance radiators are a drop-in replacement for the OEM GT-R and Mitsu Evolution radiators. Providing superior cooling while still fitting in the factory location, CBRD's lightweight racing radiators use only the highest-quality materials available. The end results are more efficient cooling, clearance for big turbo kits and lighter weight.
717-751-2345
cbrdspeedfactory.com
GReddy
EVO X Oil Cooler & Transmission Coolers
The V-mounted transmission cooler and engine oil cooler from GReddy increase the efficiency over that of the OEM Mitsubishi coolers by increasing the fluid capacity and cooling surface area, while controlling and improving airflow to the cores.
949-588-8300
greddy.com
HKS
Low Temperature Oil Cooler Thermostat
Designed to work with factory and HKS oil cooler kits, this low-temp thermostat is available for applications including EVO VIII, IX and EVO X, both MR and GSR.
310-491-3300
hksusa.com
GReddy
Nissan GT-R DCT Transmission Cooler
Featuring GReddy's famous blue inner-fin, large, 13-row core mounted in the front fender, this transmission cooler kit also includes a FRP divided air duct, similar to the OEM unit on the other side of the car for maximum cooling. The internal thermostat ensures quick fluid warm-up and consistent oil temps, and doesn't tax the standard coolant system. Completing the kit are all the necessary mounts, hose fitting and three-piece billet flanges with O-rings.
949-588-8300
greddy.com
ARC Magic
External Oil Coolers
ARC's patented fins and fluid transfer design allow for maximum cooling and minimal pressure loss. This balance of efficiency also ensures proper fluid velocity through the cooling system, thus creating a product worthy of the ARC trademark.
562-946-6820
mackinindustries.com
ARC Magic
Aluminum Radiator
ARC SMC aluminum radiators are manufactured using a unique micro-tube method that is exclusive to ARC. This method increases the internal surface area by using many layers of tubes and brings forth an improved efficiency of nearly 30 percent over stock.
562-946-6820
mackinindustries.com
Mishimoto
Universal Flex Hose
Made from stainless steel and available in a choice of chrome, blue or red, these universal hoses offer a stylish and strong replacement for your weak factory rubber hoses. The hose can be cut in order to fit any application. The universal flexible radiator hose kits include one 36-inch stainless steel flexible hose, two end caps, four rubber reducers and four hose clamps.
877-466-4744
mishimoto.com
HKS
GT-R Transmission Cooler
From the street to race circuits, the HKS DCT cooler kit for the GT-R has been developed to provide firm, positive shift engagement while assisting in the prevention of overheating the clutch and transmission; the oil's life cycle is extended by stabilizing and maintaining lower oil temperatures in the transmission. Integrated with the factory water-cooled transmission cooler, the DCT cooler kit also assists in reducing the GT-R's overall water temperature.
310-491-3300
hksusa.com
HKS
EVO X SST Transmission Cooler
The HKS SST transmission oil cooler kit was developed for better cooling efficiency on the '08-09 Mitsubishi Lancer Evolution MR. This kit fits MR models only.
310-491-3300
hksusa.com
Mizu
Oil Coolers
These oil coolers lower oil temperature to extend the life of the oil, which in turn prolongs the life of your engine's internal components by maintaining your oil at an optimal operating temperature.
888-696-4981
mymizu.com
Nippon
Low Temperature Thermostat
The Nippon low temperature thermostat is one of the most trusted automotive thermostat in the world. Its performance and durability have been confirmed at Le Mans, WRC and many other races, and many applications are available.
304-937-3300
ntacwv.com
Koyorad
CR-Z Aluminum Radiator
This brand-new application features Koyorad's KS Series radiator core to maximize cooling efficiency in Hybrid vehicles. Koyo has also integrated a 0.125-inch NPT female accessory fitting (supplied with a threaded plug) to accept temperature sensors typically included with most aftermarket temperature gauges. This item was tested to fit on global market Honda CR-Z 6MT vehicles, and Koyo also offers a full line of radiators for many vehicle makes and models.
888-557-5696
koyoradracing.com
Mishimoto
Aluminum Radiators
Mishimoto aluminum radiators are designed and engineered to maximize cooling efficiency by up to 30 percent, boost engine functions and protect your car from overheating. Offering a full line of sizes and thicknesses, there are many applications available.
877-466-4744
mishimoto.com
ARC Magic
Radiator Cap
The ARC radiator cap offers improved sealing and the ability to increase the pressure required until valve opening for increased cooling pressure and performance. This cap is the perfect addition to any engine bay.
562-946-6820
mackinindustries.com
Mishimoto
Liquid Chill
Mishimoto is proud to announce the release of Liquid Chill, the new performance cooling radiator additive. Mishimoto Liquid Chill helps to cool your car by up to 30 percent over regular coolant. Liquid Chill is non-corrosive and compatible with all coolant and/or water mixtures.
877-466-4744
mishimoto.com