Hybrid Racing Cold Air Intake System (02-06 RSX & 01-05 Civic Si & 01-05 Civic K-Swap) - HYB-CAI-01-14Full Silicone Construction Most powerful RSX Intake on the market True 3 inch tube design Includes 3" velocity stack & filter Requires the use of 70mm TB Requires the RBC RRC intake manifold Specific requirements, special design! Designing an intake system with a set of guidelines isn't hard to achieve. However, building an intake system that not only fits every engine combination while allowing that setup to produce more power is. We chose to narrow