Holley EFI LS main harnesses have a MAP sensor connecter designed for use with an LS1/2 style MAP sensor. The 558-416 is an adapter harness that can be used to adapt any LS harness that uses an LS1/2 MAP sensor connection to an LS3 MAP. Also great for use with LS Hi-Ram intakes that require an LS3 MAP sensor.
Specs
| Brand | Holley EFI |
| Category | Air and Fuel Delivery |
| Connector Quantity | 2 |
| Emission Code | 3 |
| End 1 Connector Color | Black |
| End 2 Connector Color | Black |
| Grade Type | Performance |
| Harness Application | LSX |
| Harness Type | Auxiliary |
| Product Type | MAP Sensor |
| UPC | 090127686546 |
| Part Number | 558-416 |
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