Used on supercharged and turbo charged vehicles, the inter cooler is mounted at the front of the vehicle in the air stream and cools the compressed intake air as it flows over fins and plates inside the inter cooler. The inter cooler removes heat (produced by supercharging/turbo charging) from the compressed air before it enters the engine's intake system. This action generates a denser, cooler intake charge and increases the engine’s ability to produce horsepower and torque. Inter cooling also increases the detonation threshold of the engine because of the cooler air charge, meaning the engine can be run with more ignition advance for higher performance, or run lower octane fuel before experiencing detonation. The cooler intake air also allows the engine to run slightly cooler, reducing the chance of overheating.