Skunk2 Pro Series 74mm Billet Throttle Body – Honda/Acura K-Series | Black Series | Race Only

The Skunk2 Pro Series 74mm Throttle Body is the largest K-series throttle body you can buy — a purpose-built, race-grade airflow upgrade for Honda and Acura K-series engines running the OEM Acura RSX PRB intake manifold or Skunk2's Pro Series Intake Manifold. CNC-machined from forged 6061-T6 billet aluminum and hard anodized in Skunk2's signature Black Series finish, the Pro Series TB delivers significant horsepower gains throughout the powerband on naturally aspirated builds and even greater gains on forced induction applications.

Race Only — not emissions compliant for street use.

Key Features

• 74mm Bore: The largest K-series throttle body available from Skunk2 — maximizes airflow for modified engines with high airflow demands on both NA and forced induction applications
• Forged 6061-T6 Billet Aluminum: CNC-machined from forged billet aluminum using CAE (Computer Aided Engineering) design tools for a unit that exceeds industry flow and durability standards
• Black Series Hard Anodized Finish: Skunk2's signature hard anodized Black Series finish for long-term durability and a clean, premium underhood appearance
• OEM Throttle Cable Compatible: Retains OEM throttle cable routing for simplified installation and smooth, OEM-like throttle feel
• Sealed Bearings: Integrated sealed bearings for smooth, consistent throttle plate operation
• Complete Hardware Kit: Includes all necessary hardware and a new throttle body gasket for a clean, trouble-free installation

Manifold Compatibility

• Direct Fit: OEM Acura RSX Type-S (PRB) intake manifold / Skunk2 Pro Series Intake Manifold (P/N 307-05-0310)
• Requires Adapter: 2006+ Honda Civic Si RBC manifold and other applications — adapter plate required (sold separately)

Specifications

• Type: Billet Throttle Body
• Bore Diameter: 74mm
• Material: Forged 6061-T6 Billet Aluminum
• Finish: Black Series Hard Anodized
• Application: Honda/Acura K-Series engines
• Throttle Cable: OEM compatible
• Race Only: Yes — not street legal / not emissions compliant
• Part Number: 309-05-0095

Note: Race Only — not for street use or emissions-regulated applications. Verify manifold compatibility before ordering — adapter plate required for RBC and non-PRB manifolds. Professional installation recommended. A tune is required after installation to optimize for the increased airflow.