A must-have for increased horsepower and torque, the Skunk2 Ultra Series Street Intake Manifold is crafted from superior quality materials and designed to fit K20A/A2/A3 K24 engines. With a 92mm bore, it gives you improved flow for greater engine response and power. Our Ultra Series Intake Manifold provides superior performance with its 3-piece, CFD-designed intake route and precision-tuned dyno and on-car testing. Constructed with high-grade 356 aluminum for strength and lightness, it features a large 90mm throttle body, 87mm velocity stacks, and hi-velocity runners for improved air flow. Our B Series VTEC Intake Manifold is engineered for optimal air flow, offering 87mm velocity stacks, 6.5” hi-velocity runners, and mounting flanges for additional injectors, available in 3.5L, 4.5L, and 5.5L sizes. High-grade hardware and billet aluminum plenum spacers make it universally compatible for a wide range of chassis configurations.