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29 not categorized PORSCHE 356 B PRESSURE VALVECan't find what you need? Try browsing the Accessories or Exploded Diagrams!Filtered by: 911 GT3 2003-05 (includes uncategorized and accessory items) ![]() 21011124OK Catalytic bypass pipe "u-torque" design, manufactured by m&m in Germany. The u-torque design compensates for the backpressure loss while running without cats. The design minimizes the loss of low end torque and adds 10-15 ft-lbs of torque in the mid and top range of the rpms. Why settle for the traditional cross over cat design when you can add torque in the mid-range and minimize the loss of torque down low where the 997's need it most! Ecu software is necessary !
$1,149.23
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