Holley EFI Billet 4500 Injector Spacer W/EFI Rails

Holley EFI
Sale price


Regular price $577.00
This CNC machined billet spacer is designed to provide additional fueling solutions for those using 4500 flange throttle bodies. It is also perfect for those seeking to chill their supercharged fuel injected combinations.


  • The X axis registers +/-7.5 G for acceleration and deceleration data acquisition
  • The Y axis registers from -3G to +12G for cornering data acquisition
  • Directional mounting arrow is provided, arrow needs to point forward, towards the front of the vehicle