Holley EFI Holley EFI 558-113 - Main Power Ignition Harness MSRP: $925.95 Was: Now: $822.95 Add to Cart
Holley EFI Holley EFI 558-302 - Tach Input Ignition Adapter MSRP: $46.19 Was: Now: $41.99 Add to Cart
Holley EFI Holley EFI 558-115 - Gen III Hemi Main Harness, Early, w/ TPS and Idle Air Control Connections MSRP: $871.95 Was: Now: $774.95 Add to Cart
Holley EFI Holley EFI 558-216 - Unterminated Fuel Injector Harness Kit MSRP: $151.95 Was: Now: $138.99 Add to Cart
Holley EFI Holley EFI 558-211 - Injector Harness; Fits w/Gen III Hemi V8 EFI Bosch/Jetronic Injectors; Stock/USCAR Style Injector; MSRP: $194.95 Was: Now: $175.99 Add to Cart
Holley EFI Holley EFI 558-203 - Fuel Injection Wire Harness MSRP: $220.95 Was: Now: $195.95 Add to Cart
Holley EFI Holley EFI 558-210 - Gen III HEMI V8 Injector Harness - Stock/USCAR style injectors MSRP: $204.95 Was: Now: $183.99 Add to Cart
Holley EFI Holley EFI 558-207 - Fuel Injection Wire Harness MSRP: $314.95 Was: Now: $279.95 Add to Cart
Holley EFI Holley EFI 558-201 - LSx Fuel Injection Harness MSRP: $178.95 Was: Now: $161.99 Add to Cart
Holley EFI Holley EFI 558-200 - Bosch Style Connector Harness MSRP: $202.95 Was: Now: $180.99 Add to Cart
Holley EFI Holley EFI 558-204 - Fuel Injection Wire Harness MSRP: $233.95 Was: Now: $207.95 Add to Cart
Holley EFI Holley EFI 558-116 - Gen III HEMI Main Harness , Late, w/TPS and Idle Air Control Connections MSRP: $826.95 Was: Now: $668.99 Add to Cart
Holley EFI Holley EFI 554-103 - Fuel Pressure Sensor Holley EFI - 554-103200 PSI Stainless Pressure SensorFuel Pressure Sensor; 0-200 psi.; Plug And Play For Fuel And Oil Pressure Inputs w/Holley EFI Systems;Plug and play for Holley Avenger,... MSRP: $220.95 Was: Now: $194.99 Add to Cart
Holley EFI Holley EFI 558-113 - Main Power Ignition Harness Holley EFI - 558-113Ford Modular 2V & 4V Main Harness for use with Holley Smart CoilsMain Harness for 99-04 2 & 4 Valve Ford Modular (4.6 & 5.4L) Engines for use with Holley Smart CoilsMain Power... MSRP: $925.95 Was: Now: $822.95 Add to Cart
Holley EFI Holley EFI 558-302 - Tach Input Ignition Adapter Holley EFI - 558-302Tach Input Ignition Adapter; For Use On Applications Using A CD Box; Plugs Into [Ignition] Connector On Main Harness; Yellow/Black Lead Connects To [Tach Out] Terminal;This is... MSRP: $46.19 Was: Now: $41.99 Add to Cart
Holley EFI Holley EFI 558-115 - Gen III Hemi Main Harness, Early, w/ TPS and Idle Air Control Connections Holley EFI - 558-115Gen III Hemi Main Harness, Early, w/ TPS and Idle Air Control ConnectionsHEMI Main Harness; Fits w/Gen III Hemi; Early w/Throttle Position Sensor And Idle Air Control... MSRP: $871.95 Was: Now: $774.95 Add to Cart
Holley EFI Holley EFI 558-216 - Unterminated Fuel Injector Harness Kit Holley EFI - 558-216Holley EFI EV6 Unterminated Injector Harness KitUnterminated Fuel Injector Harness Kit; Fits EV6 Injector Harness To An 8 Cylinder Engine;Introducing the latest addition to the... MSRP: $151.95 Was: Now: $138.99 Add to Cart
Holley EFI Holley EFI 558-219 - Injector Driver Harness Holley EFI - 558-219Injector Driver Harness; For Use w/PN[554-143/554-114]; Incl. J2B Connector;The Holley EFI Injector Driver Harness comes pre-terminated with a J2B connector, for plug and play... MSRP: $323.95 Was: Now: $287.95 Add to Cart
Holley EFI Holley EFI 558-214 - Multec Injector Harness Holley EFI - 558-214INJECTOR HARNESS - EARLY TRUCKMultec Injector Harness; For LS Swap; 2 Injector; Early Truck;MULTEC 2 INJECTOR HARNESS - EARLY TRUCKEFI Analog Style Gauge50 State LegalBrand:... MSRP: $284.95 Was: Now: $235.99 Add to Cart
Holley EFI Holley EFI 558-213 - Ford V8 Injector Harness Holley EFI - 558-213Evenly spaced Ford V8 Injector Harness for Jetronic "Bosch EV1" style InjectorsFord V8 Injector Harness for Jetronic "Bosch" style Fuel Injectors (Evenly Spaced)Ford V8 Injector... MSRP: $204.95 Was: Now: $177.99 Add to Cart
Holley EFI Holley EFI 558-211 - Injector Harness; Fits w/Gen III Hemi V8 EFI Bosch/Jetronic Injectors; Stock/USCAR Style Injector; Holley EFI - 558-211Gen III HEMI Injector Harness with Bosch/Jetronic and Holley injectors used for upgrades and racing for HP EFI & Dominator EFIAn Injector Harness is required and Holley offers two... MSRP: $194.95 Was: Now: $175.99 Add to Cart
Holley EFI Holley EFI 558-203 - Fuel Injection Wire Harness Holley EFI - 558-203Universal 6 Cylinder Injector HarnessFuel Injection Wire Harness; Universal; 6 Cylinder; For HP EFI/Dominator EFI Fuel Injection Systems;This is a replacement 8 cylinder injector... MSRP: $220.95 Was: Now: $195.95 Add to Cart
Holley EFI Holley EFI 558-209 - Ford V8 Injector Harness Holley EFI - 558-209Ford V8 Injector Harness for HP EFI & Dominator EFIFord V8 Injector HarnessBrand: Holley EFIEmission Code: 3Harness Application: FordHarness Type: InjectorProduct Type: Ford EV1... MSRP: $259.95 Was: Now: $224.99 Add to Cart
Holley EFI Holley EFI 558-210 - Gen III HEMI V8 Injector Harness - Stock/USCAR style injectors Holley EFI - 558-210Gen III HEMI V8 Injector Harness - Stock/USCAR style injectorsGen III HEMI Injector Harness with Stock/USCAR style Injectors for HP EFI & Dominator EFIAn Injector Harness is... MSRP: $204.95 Was: Now: $183.99 Add to Cart
Holley EFI Holley EFI 558-207 - Fuel Injection Wire Harness Holley EFI - 558-207Unterminated 16 injectors MPFI harnessFuel Injection Wire Harness; Universal Unterminated 16 Injector; For HP MPFI/Dominator MPFI Fuel Injection Systems;Unterminated 16 injectors... MSRP: $314.95 Was: Now: $279.95 Add to Cart
Holley EFI Holley EFI 558-201 - LSx Fuel Injection Harness Holley EFI - 558-201LSx Injector Harness - For EV6 Style InjectorsLSx Fuel Injection Harness; EV6 Style; For HP EFI/Dominator EFI Fuel Injection Systems;Holley products have been the undisputed... MSRP: $178.95 Was: Now: $161.99 Add to Cart
Holley EFI Holley EFI 558-200 - Bosch Style Connector Harness Holley EFI - 558-200V8 over Manifold, Bosch Style Injector HarnessV8 over Manifold, Bosch Style Connector Harness for Avenger EFI, HP EFI, Dominator EFI and Terminator X. GM / Chrysler Cylinder... MSRP: $202.95 Was: Now: $180.99 Add to Cart
Holley EFI Holley EFI 558-204 - Fuel Injection Wire Harness Holley EFI - 558-204Universal Unterminated Injector HarnessFuel Injection Wire Harness; Universal Unterminated; Bosch EV1 Style; For HP EFI/Dominator EFI Fuel Injection Systems;Universal Unterminated... MSRP: $233.95 Was: Now: $207.95 Add to Cart
Holley EFI Holley EFI 558-128 - EFI Engine Main Harness Holley EFI - 558-128Holley EFI Engine Main Harness; For Use w/5.0 Small Block Ford Engines;This harness is for fuel injected small block ford engines, such as 5.0L, or 5.8L Windsor powerplants. Plug... MSRP: $562.95 Was: Now: $474.99 Add to Cart
Holley EFI Holley EFI 558-116 - Gen III HEMI Main Harness , Late, w/TPS and Idle Air Control Connections Holley EFI - 558-116Gen III HEMI Main Harness , Late, w/TPS and Idle Air Control ConnectionsGen III HEMI Main Harness w/Throttle Position Sensor & Idle Air Control, For Late Crank & Cam Sensors, for... MSRP: $826.95 Was: Now: $668.99 Add to Cart