In a Dyno run/test it's possible to measure the amount of horsepower, maximum torque and gear ratios of a car. The player can also measure the horsepower, maximum torque and gear ratios of their car for different types of events such as Sprint and Drag. After tuning the player can also test drive their car to view and test their changes on that vehicle. If they don't like their changes, they can try tuning their car again.

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• Need for Speed: Underground 2