Holley Transmission Wiring Harness 558-455; for Chevy

Price:	$267.95

Brand:

Holley

SKU:

HOL558-455

UPC:

090127048092

Box Dimensions:

10 × 10 × 2 in

Box Weight:

2 lb

This item ships free with qualifying orders of $150 or more

(Valid on orders shipped within the contiguous United States. Excludes any oversized charges. See Shipping Policy page for more details)

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Description & Specs

Make:

Chevy

Notes:

Requires software version 5.build 100 or higher and ECU firmware 5.build 110 or higher

Quantity:

Sold As Each

Built In Relay - Must Be Wired To A Switched 12V Source
Plug And Play With 2009+ GM 4L60E Transmissions

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 from the ECU.

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