Engine Cooling System - Buyer's Guide to Engine Cooling Parts

WHO: Agency Power
WHAT: Silicone radiator hoses
WHIPS: WRX, RX-8
WALLET: $150
WHERE: www.agency-power.com; 480.921.7422
Agency Power has just released a silicone radiator hose kit for the WRX and RX-8. Their thicker-than-stock silicone radiator hoses are designed to add style to your engine bay (they come in blue or red) and are much more durable and insulating than the factory rubber hoses.

WHO: Mackin Industries
WHAT: ARC radiator cap
WHIPS: 350Z, 240SX, Evo, S2000, Civic, WRX, RX-7, Supra
WALLET: $30
WHERE: www.mackinindustries.com; 562.946.6820
Mackin Industries offers 1.3K and 1.5K Type A/B radiator caps from ARC which raise the boiling point of the coolant, allowing the radiator to dissipate heat more efficiently.

WHO: Mackin Industries
WHAT: ARC radiator valve kit
WHIPS: Nissan, Subaru
WALLET: TBA
WHERE: www.mackinindustries.com; 562.946.6820
New from ARC is their radiator valve kit which, when connected, can adjust fluid pressure to the radiator, improving cooling properties depending on your vehicle's needs.

WHO: A'PEXi
WHAT: GT radiator cap
WHIPS: Honda, Nissan, Mitsubishi, Mazda, Toyota
WALLET: $40
WHERE: www.apexi-usa.com; 714.685.5700
The GT radiator cap is a high performance replacement cap designed to provide 1.3 kg/cm3 of pressure, which raises the boiling point of the coolant, creating greater cooling efficiency. They are available in two sizes for a wide variety of applications.

WHO: Mackin Industries
WHAT: ARC radiator hose
WHIPS: 240SX, Skyline
WALLET: $245
WHERE: www.mackinindustries.com; 562.946.6820
ARC's silicone radiator hose kit replaces both the stock upper and lower radiator hoses, maintaining hose integrity under high pressure while adding style and color.

WHO: Blitz Performance
WHAT: Racing radiator cap
WHIPS: Most applications
WALLET: $25
WHERE: www.blitz-performance.com; 626.839.8350
Blitz's Racing radiator caps are engineered to withstand extreme heat conditions and to hold more pressure (1.3 bar), which in turn assists in keeping coolant temperatures lower.

WHO: A'PEXi
WHAT: GT reservoir tank
WHIPS: Yours
WALLET: $249
WHERE: www.apexi-usa.com; 714.685.5700
The GT reservoir tank is manufactured to the highest quality standards. When set up correctly, the hand-welded aluminum tank is not just a reservoir but serves as an air separation tank as well. Each tank includes its own A'PEXi reservoir cap, as well as all appropriate hoses and hardware for ease of installation.

WHO: Mackin Industries
WHAT: ARC titanium cooling plate
WHIPS: Most applications
WALLET: $125-up
WHERE: www.mackinindustries.com; 562.946.6820
Constructed out of lightweight and durable titanium, ARC's cooling plate diverts and focuses incoming air flow from the front bumper into the radiator, improving the radiator's cooling abilities.

WHO: Blitz Performance
WHAT: Cooling Performer
WHIPS: Various applications
WALLET: $120-up
WHERE: www.blitz-performance.com; 626.839.8350
Made from high-quality silicone, the Cooling Performer from Blitz can withstand extreme heat conditions and high pressure. The unit also features an additional tap for the installation of a temperature sensor.