Product Description
Holley 558-416 MAP Sensor Adapter Harness
Adapts LS1/LS2 and Early LS Truck Harness to LS3/LS9/Late LS Truck MAP Sensor
Holley EFI LS main harnesses have a MAP sensor connecter designed for use with an LS1/2 style MAP sensor. This 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 or LS9 MAP. Also great for use with LS Hi-Ram and other aftermarket intake manifolds that require an LS3 MAP sensor.