Putting a VW TDI Jetta on dyno to see if it is cheating – Video

Everyone wants to know. How much horsepower and torque does a diesel TDI VW produce when it is running clean while being emissions tested vs when it is running dirty on the road? In this TFLcar exclusive video Dyno test they find the answer and the perhaps the true reason why VW installed the cheater device on 11 million 2.0L turbo TDI Diesel engines.