| UPC | 090127048092 |
|---|---|
| Brand | Holley EFI |
| Manufacturer Part Number | 558-455 |
Check the listing for details. 558-455 Holley EFI Transmission Control Harness - 2009+ GM 4L60. Condition: New. Listed at 215.95 USD. For 2009+ GM 4L60. This also contains an internal turbine speed sensor, which was not on the previous models. When used with Dominator ECU - Requires software version 5.0 build 100 or higher and ECU firmware 5.0 build 110 or higher.