Speedmaster 1-148-042-01 Chevy GM LS1 Downdraft EFI Stack Intake Manifold System Complete Black

The Speedmaster 1-148-042-01 Downdraft EFI Stack Intake Manifold System is purpose-built for Chevy GM LS1 engines, delivering a classic individual-runner stack appearance with modern electronic fuel injection compatibility. The complete system arrives ready to install in a bold black finish, giving your engine bay an aggressive, race-inspired look without sacrificing fuel injection precision.

Designed as a complete kit, this downdraft-style intake manifold system includes everything needed for a cohesive installation on LS1 applications. Whether you're building a show car or a performance street machine, this Speedmaster intake system combines vintage throttle-stack styling with the drivability and tuning advantages of EFI.