Porsche 997.2 Carrera Center Muffler Bypass Exhaust Turbo Cat Bypass Pipes The ZPE MKII hub is

The ZPE MKII hub is designed to allow for the smallest pulleys possible on factory GM vehicles

In addition to increased  power

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78 ft/lbs +106

Porsche 997.2 Carrera Center Muffler Bypass Exhaust Turbo Cat Bypass Pipes The ZPE MKII hub isDEVELOPMENT: A CMB is widely considered to be the ideal starting exhaust mod as it yields the best return on sound optimization for the 997. 2 platform especially on cars with the factory Porsche Sport Exhaust. After consulting with top tier Porsche tuners and engine builders our final design keeps the banks separate (like the factory layout) to prevent loss of low end torque while increasing overall performance. Rasp is cut down over a crossover pipe