Bolt FAST EZ-EFI technology onto your LS engine with a FAST EZ-EFI Engine + Manifold Kit. Including our FAST EZ-EFI Fuel ECU and Multiport Harness, an LSXRT manifold, Big Mouth Throttle Body, billet fuel rails, Precision Flow fuel injectors, an XIM ignition control and TCU tranmission controller, this is the most complete EFI induction solution for your LS project.