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PSI Proformance X-Pipe Exhaust System for McLaren 720S
RotoFab Cold Air Intake System
High Quality Cast Y-Split & Flanges
Whether you're competing on the strip or tearing up the road course
5" tubes by way of an all new cast split section
APR ECU Upgrade - 4.0T EA825 V8 (C8) (RS6/RS7) Exhaust Systems PSI Proformance X-Pipe Exhaust SystemAPR ECU Upgrade 4. 0T EA825 V8 (C8) (RS6 RS7) Expect massive gains with up to 685 767 HP and 731 804 FT LBS of torque on tap, depending on octane, from this simple software upgrade. APR'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