The AMS Performance R35 GTR OMEGA Turbo Kit Lower Intercooler Piping provide maximum airflow for maximum horsepower and torque. By increasing the size of the lower intercooler pipe on the GT-R from 70mm (2.75?) to 76mm (3?) we allow for more airflow resulting in the greatest increase in HP and torque. Each pipe is powder coated in wrinkle black for good looks and durability.