Product Details: Simple to install and easy to appreciate, the PERRIN Performance™ Inlet Hose is an eloquent compliment to every engine bay. Replaces the factory corrugated rubber hose between the MAF sensor and turbo. Removes turbulence, increases flow rates, improves horsepower, torque and throttle response! Works with the factory air box, the PERRIN Intake and many of our competitors systems as well. Economically priced and available in red, blue or black.