Dyno tuning and street tuning are both viable methods for those wishing to measure the performance and efficiency of their vehicle, but there are serious differences between them.
The most obvious difference is that dyno tuning takes place in an auto shop, whereas street tuning is performed on the road. With dyno tuning, a dynamometer is used to apply a load to the engine and measure factors such as horsepower and torque, essentially replicating real-world conditions.
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