Holley EFI NTK Wideband Oxygen Sensor - Replacement NTK Wideband Oxygen Sensor for C950 or Holley EFI. Part # 554-100

Replacement Holley EFI NTK Wide band Oxygen sensor. This sensor is a direct replacement for Holley HP, Dominator, Avenger and Terminator EFI systems. Each Sensor is hand calibrated to insure accurate readings when used in conjunction with your Holley EFI system. 

Also compatible with 2nd Gen C950 or Holley EFI.

Replaces Part # 534-194