The Airaid line of premium cold air intake systems are engineered to produce the most efficient air flow into your engine. Efficient airflow created by high flow intake tubes and Airiad's exclusive Synthaflow filters improve horsepower and performance, and in many cases, when driven appropriately, deliver improved fuel economy. The Poweraid Helix Bore throttle body spacer produces a spinning air effect that improves mid range RPM power outputs. PowerandPlay is the best source for your Airaid air intake system, MIT ( Modular Intake Tube) Synthaflow Lifetime Guarantee Filter, and PowerAid spacers for your gas or diesel truck, SUV, or Jeep.