Power gains with the 981 Competition Plenum are virtually the same as with the 987.2 Competition Plenum, putting down 20 horsepower and 16 foot-pounds of torque at the wheels. The bulk of the power gains from the IPD Plenum begin around 4000 RPM, continues all the way through to redline and become fully realized in the 6000 RPM range. IPD performance gains stay above both factory power curves throughout the entire rev range.
IPD Competition Intake Plenum
GT3 82mm Throttle Body