![]() This system is designed to control the EFI and ignition on LS based engines being retrofit into older vehicles that do not require emission controls. Not legal for use on pollution controlled vehicles: FiTech’s Ultimate LS System is not approved for use on emission controlled vehicles. These engines can be modified to remove these components. Note: This kit does not work with drive by wire throttle bodies and variable valve timing.Contains a 3 BAR MAP sensor for power adder applications that supports up to 30 PSI of boost. III/IV LS-based Chevrolet street and performance engines. Transmission control feature is suitable for 4L60, 4L65, 4L80 or 4L85 GM transmissions. Application: LS or similar engines with crank and cam sensors.If not using transmission control leave the connectors untouched. Once connected to the transmission you are ready. If using transmission control connect the two sides of the trans connector to the sub-harness and connect this to the connector on the transmission. This feature is suitable for 4L60, 4L65, 4L80 or 4L85 GM transmissions. ![]() The Ultimate LS ECU has the ability to control the shift point, shift firmness, when to downshift properly, and all other features involved when controlling the transmission. The electronic transmission control is used when operating a GM electronically controlled automatic transmission. Easily tuned for even the most novice tuner, this kit includes a touch-screen controller for easy setup and configuration. Only very large cam grinds will require additional tuning in the system. The Ultimate LS standalone kit will self-learn to most cam swaps. This kit is dedicated to LS Gen III and IV engines with crank and cam sensors. This self-learning Ultimate LS ECU is the best solution for a standalone LS swap and replaces the OEM computer and harness. ![]() If you’re considering utilizing a factory intake, injectors, and cable operated throttle body, with a 4L60, 4L65, 4L70, or 4L80 GM transmission, FiTech’s Ultimate LS standalone self-learning ECU with transmission control will get your engine ready for optimal performance. ![]()
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