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HOL-319-306 | ..
Expanding on our Transmission Control options from Holley EFI. This new harness 558-455 from Holley EFI provides plug and play transmission control for the 2009+ GM 4L60 when used with a Dominator ECU. The 2009+ GM 4L60E contains an internal turbine speed sensor, which was not on the previous model year transmissions. Additionally, the valve body range selector is wired and controlled differently ..
HOL-97-220 | ..
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HOL-97-232 | ..
HOL-97-233 | ..
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HOL-97-236 | ..
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