The Spectre polished aluminum inline air box with filter has a 3-inch inlet and outlet and a four-inch outside diameter cylinder, supplied with a high-flow HPR filter to support custom intake assemblies. It’s intended to help feed cooler outside air to the engine in custom configurations where a compact inline housing and included filter are needed. The unit provides a clean, finished element for do-it-yourself intake routing.
Spectre Inline Air Box 4in. w/Filter