Chevrolet Performance 25534401 - LS3/L92 Style 4-bbl Intake Manifold

• Lightweight GM Racing design for use on LS3/L92-style cylinder heads • Reduced mass design, porting not recommended • Includes mounting bolts P/N 11609577 • Machined for 4150-style carburetors and has 3/8' NPT vacuum boss • Also available with injector bosses P/N 25534416 NOTE: LSX Ignition Controller is required carbureted applications