Performance Tuning
Performance tuning relies on aftermarket parts, or parts purchased and put on the vehicle after it leaves the stock factory, much like other forms of tuning and styling. Performance tuning focuses on increasing a vehicle's speed, acceleration, torque, and power.
There are many ways to obtain these enhancements. For instance, one of the most popular performance enhancements done to tuned cars is the installation of a turbocharger, or turbo. A turbo is a gas compressor that escalates the density of air entering the engine from the outside, providing more air to the engine and resulting in more power. Another popular way of increasing power, torque, and acceleration is to replace the car's air intake system with a larger, more direct system, often an induction kit, which will deliver more air easily through the engine system. Another, simpler alternative is replacing the car's air filters, because they don't allow dust and dirt to enter the engine. Or, tuners can purchase entirely new air intake systems, remove the old one, and replace it. All of these methods do the same thing: They increase the volume and quality of airflow, and the better the airflow to the engine the higher its performance.
Getting the most horsepower out of an engine is one goal of a performance tuner. When a vehicle rolls off the assembly line, it's fairly limited in its horsepower output. The term "horsepower" refers to how fast an engine is able to convert the energy in gasoline to motion. The faster the car's engine runs, the faster it can make that conversion, and the higher the horsepower the car has. Increasing horsepower is another highly sought after adjustment. Many performance tuners will boost a car's horsepower with superior engine parts like performance clutches, hotwires, and extra intake manifolds to lessen turbulence and increase the speed and volume of air coming into the engine. This might not make sense on the surface, but the car's engine must be fast-a result of improved clutch mechanics, air flow, and hotwiring-in order to create the highest horsepower rate possible. A slow engine won't have a lot of horsepower, so improving the bigger picture is really important to increasing a car's horsepower.