Factory radiators are designed for performance in vehicles with OEM power output and daily-driven conditions. Once you start upgrading your vehicle with aftermarket performance parts, and pushing the limits of your vehicle with strenuous activities on and off the track, the heat generated by you engine increases, therefore making the OEM radiator unable to perform the sufficient enough task as a "heat exchanger" to adequately cool your engine. The plastic end tanks attached to aluminum cores in OEM radiators are vulnerable to steam erosion and corrosion. When internal corrosion takes place, over time the radiators tubes get fully plugged from rust and sludge, deteriorating on the coolants normal cycle, resulting in overheating, yet again. Unable to perform a sufficient enough task of pulling atmospheric air through the radiator at slow speeds, factory fans that come with the OEM radiators can also be the reason for overheating. Their task just, like the thermostat, is very important: to help maintain a constant engine temperature for optimal performance of the car.

Upgrading you current OEM radiator and fan to an aftermarket branded, lightweight, high-quality aluminum radiator and fan can help you solve most heating issues in your performance vehicle, and also reduce a significant amount of weight in the engine bay. Most aftermarket radiators are designed with internal tubes that are 1 to 2 inches in diameter, compared to factory ones, which use.5 inch tubes. Large in sized, and flat in dimension, internal cooling tubes increase capacity and surface area, this results in effective heat dissipation and more efficient cooling. Fins are also an important factor in aftermarket radiators, perfectly optimized fin-density is essential to obtain maximum air travel through the radiator to aid efficient cooling. Mishimoto radiators are top of the line performance radiators that have the right balance of fins and tubes to make it an ideal cooling system for your vehicle. Mishimoto radiators are made from 100% brazed aluminum, they are very slim and therefore will easily fit in place of your OEM radiator without any modifications and are designed to increase cooling efficiency, boost engine function, and protect your performance vehicle from overheating. It is highly recommended to use Mishimoto aluminum fan shroud kit for optimal cooling performance, it will deliver that so important amount of air to the radiator and suck the excess heat from you engine.

The last factor that can increase your aftermarket radiator efficiency is diversion panel. Diversion panels are installed to cover the open area between your car bumper and the radiator, above the radiator and sometimes below. Their full purpose is utilized at freeway speed, by diverting the incoming air to pass through the radiator, instead of gathering in front of the radiator and escape to the space above and below. When the car is at lower speeds this task is performed by the fan behind the radiator. By directing the air at high speed thought the radiator, you achieve maximum radiator performance and can lower your temperatures by those important few degrees.