Combines the revolutionary self tuning EZ-EFI® with the bolt-on XIM™ Coil-Per-Cylinder Ignition System to provide LS applications with the easiest, most advanced self-tuning electronic fuel injection system available. EZ-TCU™ for easy control of electronic GM 4-speed and TCI® 6-speed transmission shift points, shift firmness & shift speed, all without a laptop or tuning experience. Includes the FAST® LSXRT™ Intake Manifold, Big Mouth Throttle Body™, in tank fuel pump, fuel rails and injectors. This kit uses advanced fuel injection technology to easily provide additional 30+ horsepower gain with show quality looks.