Holley EFI Wiring Harness - Dominator EFI NG278 Maintain factory ride qualityNo matter

Maintain factory ride qualityNo matter what your lowered truck suspension needs are

Works with all LS water pumps (requires thermostat upgrade on early LS water pumps)

2004-2005 Ford E-350 Club Wagon

Hemi 87MM LT W/ ELEC

Slightly lower gears

Holley EFI Wiring Harness - Dominator EFI NG278 Maintain factory ride qualityNo matterNote when purchasing this harness, J3 is also used for DBW applications. Product Description: Wiring Harness J3 Auxiliary Input Output Connector Dominator EFI Sold Individually Holley is quickly becoming The New Standard In EFI! Holleys HP ECU is standard equipment on the 2013 2014 Chevrolet COPO Camaro and Holleys EFI throttle body powers every NASCAR Sprint Cup Series team. Top racers are making the switch to Holley EFI every day. Racers like Tom