Ultimate Rebel LS 1000HP EFI System w/Trans Cont

The FiTECH Ultimate Rebel LS 1000HP EFI System with Transmission Controller delivers modern fuel injection performance to GM LS-series engine platforms. This multi-port electronic fuel injection system pairs an 80 lb/hr injector configuration with a 102mm throttle body, engineered to support up to 1000 horsepower in high-performance applications. The integrated transmission controller simplifies wiring and enables seamless integration between fuel and drivetrain management on restomod, racing, and performance build projects.

Key specifications include an aluminum construction with black powder-coat finish for durability in engine bay environments. The 80 lb/hr injectors are sized for efficient fuel delivery across a wide rpm and load range, while the 102mm throttle body provides the flow capacity required for high-output LS combinations. The included transmission controller eliminates the need for separate aftermarket transmission modules, reducing complexity and potential integration issues. This complete system addresses the core challenge of retrofitting modern fuel management into carbureted LS platforms without sacrificing performance or drivability.

Buyers pursuing LS engine swaps in classic vehicles, street rods, or track cars will find this system particularly suited to builds targeting 500–1000 horsepower. The combined fuel and transmission control simplifies wiring harness design, which is critical when converting older platforms to modern EFI architecture. Multi-port fuel injection delivers superior fuel atomization and distribution compared to single-point systems, resulting in improved efficiency, cold-start performance, and throttle response across the entire powerband.