Improves airflow from the intercooler. High-Ram raises boost without increasing backpressure at the turbine. Result: a more responsive, fuel-efficient engine. Cooler, denser air packs real power. That's an absolute fact. So why would you choke off all that power-packed air at the last second on its way from the intercooler to the intake manifold? That's exactly what the stock air intake does. The 3 inch Banks High-Ram changes all that. Designed on the computer 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. Don't blow your last chance to add vital turbo boost to your engine. Whether you're just starting out or you've already made major aftermarket modifications, go for the Banks High-Ram. Breaking News! Banks has done it again. Our value-priced 3 inch High-Ram wastes the competition. The factory inlet is cramped and angular compared to Banks' larger, streamlined cast-metal High-Ram. Proof positive that Banks High-Ram outflows the competition by anywhere from 29 to nearly 57%! Did we rig the test by doing anything to hurt the other guys' product performance? No way. We just kept improving ours until we put them on all back on the trailer.