
Description
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
EMISSIONS
This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles.
The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:
- 1965 and older U.S. manufactured California Certified vehicles
- 1967 and older U.S. manufactured Federally Certified vehicles
- 1967 and older Foreign manufactured vehicle
The following vehicles are considered Emissions Controlled Vehicles:
- 1966 and newer U.S. manufactured California Certified vehicles
- 1968 and newer U.S. manufactured Federally Certified vehicles
- 1968 and newer Foreign manufactured vehicle
WARRANTY INFORMATION
Holley Brand Warranties
Only logged in customers who have purchased this product may leave a review.

![Holley EFI TERMINATOR X MAX [58X | EV6 | DBW | TRANSMISSION CONTROL | 3.5″] (GM 6.0L LS2, 6.2L LS3, 4.8L, 5.3L & 6.0L VORTEC + 4L60E & 4L80E)](https://coloradospeed.com/wp-content/uploads/2026/05/550-928-300x225.jpg)
![Holley EFI TERMINATOR X MAX [58X | EV6 | DBW | TRANSMISSION CONTROL | 3.5″] (GM 6.0L LS2, 6.2L LS3, 4.8L, 5.3L & 6.0L VORTEC + 4L60E & 4L80E)](https://coloradospeed.com/wp-content/uploads/2026/05/550-928_A-300x225.jpg)


![Holley EFI TERMINATOR X MAX [24X | MULTEC | TRANSMISSION CONTROL | 3.5″] (GM 4.8L, 5.3L & 6.0L VORTEC + 4L60E & 4L80E)](https://coloradospeed.com/wp-content/uploads/2026/05/550-917-300x225.jpg)
![Holley EFI TERMINATOR X MAX [24X | MULTEC | TRANSMISSION CONTROL | 3.5″] (GM 4.8L, 5.3L & 6.0L VORTEC + 4L60E & 4L80E)](https://coloradospeed.com/wp-content/uploads/2026/05/550-917_A-300x225.jpg)
Reviews
There are no reviews yet.