BLOX Racing offers a throttle body adapter for Honda K-series
enthusiasts wanting to use the RBC intake manifold while retaining the
drive-by-cable operation. In a nutshell, the RBC intake manifold is the
best performing manifold for the K-series engine but is haltered by the
electronic drive-by-wire system.
Using the throttle body adapter allows the BLOX Racing billet K-series
or the OEM K20A2 throttle body to be bolted onto the RBC intake manifold
providing quicker throttle response and intake airflow.