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The Volant Pro5 closed-box air intake for 1999–2001 Ford F-150 5.4L V8 swaps the stock system for a sealed high-flow intake that improves breathing and helps protect the engine. It uses a Pro5 5-layer oiled cotton gauze filter shipped pre-oiled to maximize airflow for potential power gains. Kit components include a closed filter box, air duct, connectors and clamps; it installs in under an hour and is washable and reusable.
Volant 99-01 Ford F-150 5.4 V8 Pro5 Closed Box Air Intake System
