High horsepower engines need both fuel and air. However, the factory MAF housing restricts air flow to these engines. PERRIN™ has devised a way to literally sneak additional airflow around the MAF to increase resolution in timing and fuel maps on your ECU. Combined with the wisdom of a proper tuning guru you can add tremendous horsepower and torque. Available with red, blue or black silicone tubing. Kit includes mounting hardware and instructions. See PERRIN™ for additional details.