Free Shipping on Orders Over $109 at Summit Racing

Holley HP EFI ECU and Harness Kits 550-603

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, GM, LS2, LS7, 58x Crank Sensor, Kit

Part Number: HLY-550-603

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Holley HP EFI ECU and Harness Kits 550-604N

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, NTK O2, Wideband, CANBUS, Universal, MPFI, Kit

Part Number: HLY-550-604N

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Holley HP EFI ECU and Harness Kits 550-601N

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, O2 Sensor, for GM TPI, Holley Stealth Ram, Kit

Part Number: HLY-550-601N

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 13, 2026 if ordered today

Holley HP EFI ECU and Harness Kits 550-619N

Engine Management Systems, HP EFI, ECU and Harness Up to 16-Injectors, 8-Coils, NTK O2 Sensor, Wideband, CANBUS, Ford, 4-valve, 5.0L, Kit

Part Number: HLY-550-619N

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 13, 2026 if ordered today

Holley HP EFI ECU and Harness Kits 550-625N

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, NTK O2 Sensor, Wideband, CANBUS, Ford, 4-valve, 5.0L, Kit

Part Number: HLY-550-625N

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 13, 2026 if ordered today

Holley HP EFI ECU and Harness Kits 550-606N

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, NTK O2, Wideband, CANBUS, Ford, Multi-Point, Kit

Part Number: HLY-550-606N

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Trick Flow® 515 HP GenX® Top-End Engine Kits for GM LS1 TFS-K306-515-460

Trick Flow® 515 HP GenX® Top-End Engine Kits for GM LS1 TFS-K306-515-460

Head Combo, GenX® Top-End, 515 HP/460 ft.-lbs. Torque, Chevy, Small Block, LS1, Kit

Part Number: TFS-K306-515-460

5.0 out of 5 stars ( 3 )

...Loading

Trick Flow® 360 HP Twisted Wedge® Top-End Engine Kits for Ford 5.0L TFS-K514-360350B

Head Combo, Rockers, Head Bolts, Intake, Camshaft, Pushrods, Timing Set, Valve Covers, Gaskets, Kit

Part Number: TFS-K514-360350B

4.5 out of 5 stars ( 4 )

...Loading

Nitrous Express LT4 Supercharger Lid Nitrous Systems for 2017-2021 CAMARO, 2015-2019 CORVETTE, 2016-2019 CTS - 20939BMF-00

Nitrous Oxide Injection System Kit Nitrous & Water Methanol System w/Billet LT4 Supercharger Lid No Bottle

Part Number: NEX-20939BMF-00

Not Yet Reviewed

Estimated Ship Date: Apr 7, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 7, 2026 if ordered today

Holley HP EFI ECU and Harness Kits 550-607N

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, NTK O2, Wideband, GM, LS2, LS3, LS7, Kit

Part Number: HLY-550-607N

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 13, 2026 if ordered today

Trick Flow® 550 HP GenX® Top-End Engine Kits for GM LS2 TFS-K306-550-470

Head Combo, GenX® Top-End, Chevy, Small Block, LS2, Kit

Part Number: TFS-K306-550-470

3.33 out of 5 stars ( 3 )

Estimated Ship Date: Jun 16, 2026 if ordered today

...Loading

Estimated Ship Date: Jun 16, 2026 if ordered today

Nitrous Express LT4 Supercharger Lid Nitrous Systems for 2017-2020 CAMARO, 2015-2019 CORVETTE, 2016-2019 CTS - 20939-00

Nitrous Oxide Injection System Kit Nitrous System with Billet LT4 Supercharger Lid w/ No bottle

Part Number: NEX-20939-00

Not Yet Reviewed

Estimated Ship Date: Apr 7, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 7, 2026 if ordered today

Nitrous Express (NX) Nitrous Oxide Systems 55140-12

Nitrous Oxide Injection System Kit 4150 RNC Conventional Plate System w/ .375" Solenoid w/ 12lb Bottle

Part Number: NEX-55140-12

Not Yet Reviewed

Estimated Ship Date: Apr 7, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 7, 2026 if ordered today

Trick Flow® Twisted Wedge® Top-End Engine Kits for Ford 4.6L 2V TFS-K519-390-375

Head Combo, Camshaft, Timing Set, Gaskets, Ford, Modular V8, 4.6L 2V, Kit

Part Number: TFS-K519-390-375

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 18, 2026 if ordered today

...Loading

Estimated Ship Date: Jun 18, 2026 if ordered today

XClutch Stage 1 Clutch Kits for 2018-2023 MUSTANG - XKFD27658-2G

Clutch Kit Inc Chromoly Flywheel + HRB; 10.5 in. Twin Solid Organic Discs

Part Number: XCL-XKFD27658-2G

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

...Loading

Estimated Ship Date: Tomorrow if ordered today

Nitrous Express LT4 Supercharger Lid Nitrous Systems for 2017-2021 CAMARO, 2015-2019 CORVETTE, 2016-2019 CTS - 20939BMF-15

Nitrous Oxide Injection System Kit Nitrous & Water Methanol System w/Billet LT4 Supercharger Lid 15lb Bottle

Part Number: NEX-20939BMF-15

Not Yet Reviewed

Estimated Ship Date: Apr 7, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 7, 2026 if ordered today

Trick Flow® 500 HP GenX® Top-End Engine Kits for GM LS1 TFS-K306-500-460

Head Combo, GenX® Top-End, 500 HP/460 ft.-lbs. Torque, Chevy, Small Block, LS1, Kit

Part Number: TFS-K306-500-460

Not Yet Reviewed

...Loading

Trick Flow® 485 HP GenX® Top-End Engine Kits for GM LS1 TFS-K306-485-460

Head Combo, GenX® Top-End, 485 hp/460 ft.-lbs. Torque, Chevy, Small Block, LS1, Kit

Part Number: TFS-K306-485-460

Not Yet Reviewed

...Loading

Nitrous Express (NX) Nitrous Oxide Systems 20971-12

Nitrous Oxide Injection System Kit 3.6L V6 DODGE PLATE SYSTEM (50-200HP) W/ 12LB BOTTLE

Part Number: NEX-20971-12

Not Yet Reviewed

Estimated Ship Date: Apr 7, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 7, 2026 if ordered today

Nitrous Express (NX) Nitrous Oxide Systems 20957-12

NOx Injection System Kit, Coyote Dry Direct Port Plate System(12LB Bottle)

Part Number: NEX-20957-12

Not Yet Reviewed

Estimated Ship Date: Apr 7, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 7, 2026 if ordered today

Nitrous Express (NX) Nitrous Oxide Systems 55170-12

Nitrous Oxide Injection System Kit 4500 RNC Conventional Plate System w/ .375" Solenoid w/ 12lb Bottle

Part Number: NEX-55170-12

Not Yet Reviewed

Estimated Ship Date: Apr 7, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 7, 2026 if ordered today

Nitrous Express Restricted Nitrous Class Nitrous Systems 55040-12

Nitrous Oxide Injection System Kit 4150 GASOLINE (RNC) WITH 12LB BOTTLE

Part Number: NEX-55040-12

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

...Loading

Estimated Ship Date: Tomorrow if ordered today

Nitrous Express (NX) Nitrous Oxide Systems 20972-05

NOx Injection System Kit, Hellcat Lid With Nitrous System (100-400HP) W/ 5LB Bottle

Part Number: NEX-20972-05

Not Yet Reviewed

Estimated Ship Date: Apr 7, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 7, 2026 if ordered today

Trick Flow® Twisted Wedge® Top-End Engine Kits for Ford 4.6L 2V TFS-K519-380-375

Head Combo, Camshaft, Timing Set, Gaskets, Ford, Modular V8, 4.6L 2V, Kit

Part Number: TFS-K519-380-375

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 17, 2026 if ordered today

...Loading

Estimated Ship Date: Jun 17, 2026 if ordered today

Edelbrock Pro-Flo 4 Plus Self-Learning Engine Management Systems 36160

Engine Management System, Fuel Injection, ProFlo 4 Plus, ECU, Oxygen Sensor, Drive-By-Wire, Tablet, Ford, Coyote, 2015.5-17, Swap, Kit

Part Number: EDL-36160

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 20, 2026 if ordered today

1,360 Results Found For "fuel injection kit"