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a turbo muffler
or the upgraded APR Ultracharger System
Precision German manufacture spring-winding experts since 1907
Increased clutch pressure and current
Year Make Model Submodel 2009-2012
APR - Performance ECU Software - 4.5T Turbo/Turbo S (Cayenne) Volkswagen gti mk7.5 a turbo mufflerAPR's ECU Upgrades are the best dollar per horsepower modification one can make to improve engine performance. The upgrades dramatically increase horsepower and torque, making for an exceptionally quicker and more exciting vehicle. This is made possible through APR's optimization of the factory engine management system to take full advantage of the engine's capabilities, without needing any end user adjustment. The ECU Upgrades are available with
