Adapter Kit; MAFS 3in Aluminum

The Adapter Kit; MAFS 3in Aluminum from SPECTRE is designed for engine builders and performance enthusiasts seeking a precision intake manifold adapter for mass airflow sensor integration. This aluminum adapter acts as a critical link between your factory or upgraded intake manifold and a 3-inch mass airflow sensor housing, facilitating effective fuel management and accurate air density readings for tuned engines.

Constructed from lightweight aluminum, the SPECTRE MAFS adapter minimizes additional intake weight while ensuring structural rigidity under both boost and naturally aspirated conditions. The 3-inch bore diameter is optimized for engines within the 302–383 cubic inches range and accommodates standard aftermarket mass airflow sensor elements without restriction. Aluminum's superior thermal conductivity compared to plastic alternatives helps reduce heat soak in the sensor cavity, enhancing signal accuracy during high-RPM operation.

This compact adapter is ideal for engine swaps, carbureted-to-EFI conversions, and performance fuel injection upgrades. Its dimensions of 5 x 3.5 x 6.5 inches allow for clean integration into most custom intake manifold designs without extensive modifications to surrounding components. Whether upgrading to a larger diameter intake tract or retrofitting a modern MAFS onto a classic platform, this adapter ensures proper sensor positioning and flow characteristics.