Skunk2 Ultra Series Race Intake Manifold - Black 3.5L for 1992-2001 Acura/Honda (B-Series VTEC)

Fits select 1992-2001 Acura Integra GS-R and Type R, Honda Civic Si, and Civic del Sol VTEC models equipped with B-series VTEC engines. The Skunk2 Ultra Series Race Intake Manifold (MPN 307-05-9050) is a three-piece modular design engineered for high-performance applications. Developed using advanced Computational Fluid Dynamics (CFD) software, this manifold optimizes airflow to increase torque and horsepower over a broad powerband compared to standard OE and aftermarket designs.

Constructed with a 3.5L plenum, this manifold features a unique mounting flange that is universally compatible with B16A, B17A, and B18C VTEC cylinder heads. The 6.5-inch tilted and tapered high-velocity runners are cast with generous wall thickness to allow for extensive custom porting, while the raised 87mm velocity stacks ensure a smooth transition into the runners. The plenum is removable, allowing for easy disassembly and the addition of optional 1L or 2L billet aluminum spacers to tune plenum volume to your specific engine requirements.

• 3.5L plenum volume (expandable via optional spacers)
• 90mm throttle body flange using a standard 5.0L Ford pattern
• 6.5-inch tilted/tapered high-velocity runners
• Raised 87mm velocity stacks with ample material for porting
• Provisions for additional injectors on the underside of runners
• High-grade mounting hardware and thermal manifold flange gasket included
• US Patent No. D673977S