Replacement Holley EFI NTK Wide band Oxygen sensor. This sensor is for use with 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 Holley Part # 534-194
Holley EFI is our personal standalone system of choice as it is extremely versatile, user friendly, and all integrated into one box. Check out our other products to see our custom plug-and-play harnesses for the ultimate in custom EFI!