The snorkel system relocates your engine"s air intake point from the relatively low and vulnerable position under the hood to a much higher and safer location. At this new location there is a constant source of cool, clean, dry air available thus improving airflow into the engine. Increases in airflow help your engine breath easier and can improve the performance of your vehicle. Manufactured from premium high quality LLDPE ( Linear Low Density Polyethylene) For Models with a 4.0L V6 GRFE Engine