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The Volant Pro5 Closed Box Air Intake for 2006–2008 Chevrolet Trailblazer, GMC Envoy and Isuzu Ascender 4.2L I6 is a cold-air kit that replaces the factory intake with a sealed airbox and a pre-oiled Pro5 five-layer cotton gauze filter to boost airflow and safeguard the engine. It’s built to provide improved breathing and extended service intervals. The kit includes closed filter box, air duct, Pro5 filter, connectors and clamps, smoked acrylic see-through lid, easy bolt-on installation, and a washable, reusable oiled filter.
Volant 06-08 Chevrolet Trailblazer/GMC Envoy/Isuzu Ascender 4.2L I6 Pro5 Cold Air Intake System
