Blox Racing Performance Intake Manifold for Honda B16 / B17 / B18C5 Integra Type-R - BXIM-20100-V3The Blox Racing Power Intake Manifold features a larger plenum and longer runners which significantly increases the engines incoming airflow and volume compared to the factory and some other aftermarket units. Each intake manifold has been balanced, pressure tested and tuned to create more usable horsepower across a wider RPM range. The Blox Racing Version 3 intake manifolds feature a pre drilled plenum that accommodates the Blox surface mount vacuum