RBC Intake Manifold

The Honda RBC Intake Manifold (17100-RRB-A00) is a highly regarded OEM performance enhancement for K-series Honda and Acura engines. It was originally featured on the 2006-2011 Honda Civic Si and is celebrated for its ability to produce significant high-RPM horsepower and robust midrange torque, making it a prime choice for aggressive naturally aspirated or turbocharged engine builds. Compared to earlier PRB and PRC manifolds, the RBC intake manifold demonstrates superior airflow past 5,500 RPM, effectively extending power delivery to the engine's redline. This characteristic is particularly advantageous for K-series engines designed to operate above 7,000 RPM. It is a popular upgrade for various K24 and K20 engines found in models like the Acura TSX, Honda Accord, Honda Element, Acura RSX, Honda Civic Si (EP3), and Honda CR-V. Installation on K20 cylinder heads requires modification, specifically cutting off integrated coolant ports to ensure clearance with the head’s water neck. This is a well-documented and common practice within the K-swap community. Additionally, Hybrid Racing offers a 75mm ported version of the RBC manifold, CNC-machined to accommodate larger throttle bodies for enhanced airflow and throttle response. It's important to note that this porting applies only to the throttle body flange, not where the manifold connects to the head. Fitment details include: - 2006–2011 Honda Civic Si - 2004–2008 Acura TSX (K24A2) - 2003–2007 Honda Accord (K24A4, K24A8) - 2003–2011 Honda Element (K24A4, K24A8) - 2002–2006 Acura RSX (K20A2, K20A3, K20Z1) – requires coolant port modification - 2002–2005 Honda Civic Si (K20A3) – requires coolant port modification - 2002–2006 Honda CR-V (K20A4, K24A1) – requires coolant port modification