Introducing the Ti4L, a powerful control solution for GM's 4L series automatic transmissions. As an expansion module compatible with the NEXUS ECU and VCU systems, it integrates seamlessly with NSP software for programming. Rebel LS users can quickly configure the unit using the easy-to-follow setup wizard in the Haltech Connect App. Not only is the setup process straightforward, but the Ti4L also features advanced long-term learning strategies. Its innovative closed-loop line pressure control enhances shifting performance over time, improving the driving experience with each use.