Volant Performance Air Intake Systems are designed for one thing, Performance. By optimizing airflow and utilizing Donaldson Powercore Ultra - Web free - flowing air filters, Volant Performance Intakes outflow stock systems to increase overall vehicle performance while providing the ultimate in engine protection. Donaldson PowerCore(R) Ultra Web Air Filters are 99.96 efficient and offer an unmatched combination of maintenance - free air filtration (up to 150K miles) and performance in the marketplace today.