Banks High-Ram Intake Manifold improves airflow from the intercooler, raises boost without increasing backpressure at the turbine. Resulting in a more responsive, fuel-efficient engine. Cooler, denser air packs real power. The 3 inch Banks High-Ram is designed using computational fluid dynamics, tested on the flow bench and proven on the dyno, High-Ram is much more than just another pretty air inlet. The factory inlet is cramped and angular compared to Banks’ larger, streamlined cast-metal High-Ram.