more power
Now it’s an arms race between OEMs locking down chips and tuners trying to crack them.
APR's engineers tune an Audi on a rolling road.
Anyone who has followed the aftermarket automotive performance industry for long enough can tell you just how dramatically it has changed over the past few decades. What once required mechanical tinkering and a lot of know-how can now be done in mere minutes via an electric control unit (ECU), which can extract significant boosts in horsepower and torque from naturally aspirated, turbocharged, or supercharged engines.
In some ways, though, the process has become much more difficult.
