Porsche has always been heavily invested in setting high standards for its turbochargers as a means of increasing vehicle performance. Every top model of the 911 generation has consistently borne the word “turbo” in its name, as “turbo” has become synonymous with leading edge technology. 
Porsche 911 Turbo (930)
With a highly impressive output of 300 hp and a max torque range of 412-430 Nm, the turbocharger of the 1974 ancestor shares the same exhaust-gas overpressure valve (wastegate) as racing cars. It develops 191 kW (260 hp), with a maximum boost pressure of 0.8 bar. 
Porsche 959
Taking it one step further, the Porsche 959 demonstrated the future potential of turbo technology, which was first presented at the IAA in 1983. This all-wheel-drive super sports car encompasses a complex and effective sequential boosting system containing two different-sized turbochargers. Developed by Porsche, the Porsche 959 includes an electronic boost control system. With a max torque of 500 Nm and an output of 450 hp, the 959 boasts impressive power. 
Porsche 911 Turbo 3.3 (964)
The Porsche 911 Turbo 3.3 has easily met increasingly stringent emission standards thanks to a complex exhaust-gas after treatment with three-way metal catalytic converters along with an additional catalytic converter for the bypass outlet. There is a slight increase in the max torque of 450 Nm and an output of 320 hp compared to the Porsche 911 Turbo (930). 
Porsche 911 Turbo (997)
Surprising everyone in 2006, the 997 generation 911 Turbo combined a gasoline vehicle with a VTG, or variable turbine geometry creating different angles of attack for the guide vanes. To handle the much higher temperatures, the vehicle contains materials from the aerospace industry. 
Porsche 911 Turbo S (992)
The new heights of turbo development are found in the 992 generation. Encompassing powerful innovation, the new engine of the 911 Turbo S combines wastegates with Vehicle Turbine Geometry. But this time, they are even bigger and mirror each other. After a cold start, the catalytic converters instantly begin to heat up, thanks to the electronically controlled bypasses that warm them up. When operating at a full load, the exhaust back pressure is automatically reduced, therefore reducing the residual gas in the cylinder that can ultimately interfere with combustion. Powered by its twin-turbo (parallel), the 992 generation sets records with its max torque of 800 Nm, an output of 650 hp, and max charge pressure of 1.4 bar. 
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