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This is by far the best intake manifold Honda has made as far as power is concerned. The RRC manifold out performs the RBC, PRB and PRC manifolds almost everywhere on the power band.
RRC Intake manifold from the FD2 Civic Type R K20Z engine. This is a direct bolt on to a 2006-2011 Civic Si but This will need to have the flange cut for a RSX-S head.
Estimated Shipping Within 4-6 Weeks!