Honda -OEM - RRC Intake Manifold

Honda 

OEM

RRC Intake Manifold

Direct bolt on to K24A
Require modification for K20A Cylinder head

Recommend to use for K24 Conversion if your planning to chase for peak or top end power
Recommended for K20 to Rev up to 8800rpm

Since its inception, the RBC manifold has been known as the best “BANG FOR YOUR BUCK” upgrade for any K-Series tuner.  It’s still a super buy for anyone looking for good gains on a budget.  Since it's hard to beat OEM Honda perfection, the newest RRC manifold doesn't look a whole lot different from its predecessor.  Upon closer inspection, it can be found that Honda incrementally opened each runner a few millimeters larger in comparison to the next as you move from cylinder #1 through cylinder #4.  This refinement looks to equalize air flow distribution to each cylinder more so than what the RBC is capable of.  And as dyno numbers have shown, the RRC enhancements have proven to surpass the older RBC design.
One of Karcepts' idea men, Katman, helped out the Honda K-Series community by contributing his internally stock k20a and EG6 chassis to perform a Manifold Shootout which compared 7 different manifolds for the K motor.  After the smoke cleared, the RRC stood atop the field with the highest gains observed.

Ease of fitment has been confirmed for the following vehicle/engine/mount combinations:
1992-1995 Honda Civics equipped with a K20 engine and Hasport EGK1 engine mounts
1996-2000 Honda Civics equipped with a K20/K24 engine and Hasport EKK2 engine mounts
1994-2001 Acura Integras equipped with a K20 engine and Hasport EGK1 engine mounts
2002-2006 Acura RSX-S/Honda ITRs with a K20 engine and all available engine mounts
Other chassis, mounts, and engine combinations can still utilize the RRC intake manifold; however, clearances between the radiator support, radiator, and hood may need to be addressed.  For example, a 2002-2005 Honda Civic Si/CTR just needs some minor trimming of the upper radiator support in order to fit an RRC manifold into its chassis.
RRC installation may be carried out in similar fashion as an RBC manifold as shown in our KIM01 instructions below:
KIM01 Installation Instructions

One discrepancy between the RBC and RRC manifold is that the RRC manifold does not have idle air path provisions.  This is due to the newer RRC manifold only being found in Honda drive by wire throttle body applications.  Thus if desiring to utilize the RRC manifold with a cable driven 2002-2006 RSX-S/ITR or 2002-2005 Civic Si/CTR throttle body (or aftermarket equivalent), you will need to purchase our Karcepts RRC Adapter if wishing to retain K-Series idle air control valve function.  Alternatively, any of our RBC adapters will still work on the RRC manifold in this application; however, you will need to delete your idle air control valve, which can be done with the help of our Karcepts Idle Air Control Valve Block-Off Plate.