Chevy GM LS1 Downdraft + FiTech Ultra EFI Fuel Injection System [Black] Use the stock Quadra-Jet carb

Use the stock Quadra-Jet carb or 500-650 cfm vacuum secondary carburetor

These coils have corrosion-protected laminations to protect coils from the harsh operating environment

these housings tubes are manufactured with

Pop-Off plates are designed to release the high pressure that builds up inside of the engine to prevent damaging or cracking your supercharger components

Speedmasterª EFI systems give you everything you need to add powerful and efficient fuel injection to your vehicle

Chevy GM LS1 Downdraft + FiTech Ultra EFI Fuel Injection System [Black] Use the stock Quadra-Jet carbDiscover the zenith of fuel injection innovation with our enhanced Downdraft 8 Stack EFI Intake Manifold System, now impeccably paired with FiTech's sophisticated computer technology. This upgraded combination elevates the standard in electronic fuel injection, offering an unmatched solution for a wide spectrum of vehicles, from everyday use to high powered performance.