Easy — 1–2 hours
Description
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Holley |
| Part Number | H00E 522-221 |
Videos
Setting Custom Injector Data in your Holley Terminator X Tune
New Terminator X High Impedance-Fuel Injectors in Multiple Flow Rates
HOW TO REPLACE FUEL INJECTORS & UPGRADES | HOLLEY SNIPER/TERMINATOR X EFI
Terminator X Full Install and Overview
How To: Sniper Terminator X Stealth Injector Change And Check Connector
NIGHTMARE No Start Situation, DO NOT Do This With Your Holley Terminator X!!
Quit Making This Mistake w/ Holley Terminator X!
Fuel Injector Guide – Which Fuel Injector Is Right For You?
How to Install a Holley Terminator X (Step by Step)
2 Quick & Easy HOLLEY EFI Tips That Will Save Your Life
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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