Check the listing for details. Holley Sniper EFI 551-101 Transmission Control Kit. Condition: New, Made in United States. Listed at 614.95 USD. Compatible with Sniper 1 based applications with GM® and Ford® electronic 4-speed transmissions - Handheld not included. This part is not created or sold by GM® or Ford®.; The Sniper Transmission Controller (STC) is designed for common GM and Ford electronic 4-speed transmissions. Three part numbers cover a complete range of applications - all Sniper EFI systems, Sniper 2 EFI specific (M8 CAN connection), or a full standalone unit. The Sniper specific applications connect to your Sniper EFI system via CAN bus and is programmed through the existing Sniper 3.5-inch touchscreen. No programming is available with PC computer software, however the transmission functions can be data-logged and reviewed with Sniper PC software.