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Holley EFI Terminator X Performance Fuel Injector, Individual 522-121X

Holley EFI Terminator X Performance Fuel Injector, Individual 522-121X
Holley EFI Terminator X Performance Fuel Injector, Individual 522-121X
$118.99 ea
NEWARRIVING SOONEstimated Ship Date 08/01/2024 (If Ordered Today)7 Available from HOLLEY PERFORMANCE PRODUCTS as of 07/12/2024
Model: 4952877
Terminator X High Impedance Fuel Injectors feature a precision lapped disc valve, high-quality brass windings, and high-temp o-rings. These injectors provide excellent linearity with no discernible "bounce" at low pulse widths as commonly found in other injectors. With a wide variety of fuel flow offerings from 42 lb./hr. to 220 lb./hr. (441 cc/m to 2310 cc/m) you are sure to find an injector that matches your non-emissions controlled application. These high quality fuel injectors can also be used with any ECU that utilize high impedance fuel injector drivers.
  • PICO/EV6 style performance injectors – sold individually or set of 8
  • High impedance for use with saturated drivers
  • Rated injector flow: 120 lb./hr. at 60 PSI of base fuel pressure
  • USCAR injector connector
  • 40mm o-ring to o-ring length
  • Compatible with many OEM LS Intake Manifolds: LSA, LS3, LS7, L76, L92, L98, L99, LS9
About Holley Performance Products

Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy NASCAR Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds and engine dress-up products for street performance, race and marine applications. As a single solution or partnered with products from other Holley companies we can give you the edge you need over the competition!


Download Name File Size



Body Diameter 0.650
Body Length 1.85"
Body Style EV6
Connector Series EV6
Emission Code 4, 3
Fuel Type Gasoline, E-85
Impedance High (12.2 Ohm)
O-Ring to O-Ring 1.421
Part Type Fuel Injector
Product Type Fuel Injector
Proposition 65 www.P65Warnings.ca.gov
Rated Injector Flow 120 lb/hr


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Holley EFI Terminator X Performance Fuel Injector, Individual 522-121X:
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