997 Catalytic Bypass (U-Design) for OE exhaust without valves

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 !_x000B__x000B_This item may need to be sourced from Germany and would take 2-4 weeks to arrive. Once ordered it cannot be canceled. Please call to check stock or request expedited shipping.