EFI Kits, Fuel Injectors, Throttle Bodies & More

FiTech Ultimate LS 1,000 HP EFI Short Cathedral Intake Fuel Injection Master Kits 79931

Ultimate LS 1000 HP EFI System With Master Kit Short Cathedral Intake

Part Number: FIF-79931

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

FiTech Ultimate LS 1,000 HP EFI Long Runner Cathedral Intake Fuel Injection Master Kits 79932

Ultimate LS 1000 HP EFI System With Master Kit Long Runner Cathedral Intake

Part Number: FIF-79932

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

FiTech Ultimate LS 1,000 HP EFI Long Runner Cathedral Intake Fuel Injection Master Kits 79933

Ultimate LS 1000 HP EFI System With Master Kit Long Runner Cathedral Intake

Part Number: FIF-79933

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

FiTech Ultimate LS 1,000 HP EFI Short LS3 Port Intake Fuel Injection Master Kits 79934

Ultimate LS 1000 HP EFI System With Master Kit Short LS3 Port Intake

Part Number: FIF-79934

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

FiTech Ultimate LS 1,000 HP EFI Short LS3 Port Intake Fuel Injection Master Kits 79935

Ultimate LS 1000 HP EFI System With Master Kit Short LS3 Port Intake

Part Number: FIF-79935

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

FiTech Ultimate LS 1,000 HP EFI Short LS7 Port Intake Fuel Injection Master Kits 79936

Ultimate LS 1000 HP EFI System With Master Kit Short LS7 Port Intake

Part Number: FIF-79936

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

FiTech Ultimate LS 1,000 HP EFI Short LS7 Port Intake Fuel Injection Master Kits 79937

Ultimate LS 1000 HP EFI System With Master Kit Short LS7 Port Intake

Part Number: FIF-79937

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

FiTech Ultimate LS 1,000 HP EFI Short LS3 Port Intake Fuel Injection Master Kits 78935

Ultimate LS 1000 HP EFI System With Master Kit Short LS3 Port Intake

Part Number: FIF-78935

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

FiTech Ultimate LS 1,000 HP EFI Short LS7 Port Intake Fuel Injection Master Kits 78936

Ultimate LS 1000 HP EFI System With Master Kit Short LS7 Port Intake

Part Number: FIF-78936

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

FiTech Ultimate LS 1,000 HP EFI Short LS7 Port Intake Fuel Injection Master Kits 78937

Ultimate LS 1000 HP EFI System With Master Kit Short LS7 Port Intake

Part Number: FIF-78937

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

FiTech Ultimate LS 500 HP EFI Long Runner Cathedral Intake Fuel Injection Master Kits 79406

Ultimate LS 500 HP EFI System With Master Kit Long Runner Cathedral Intake

Part Number: FIF-79406

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

FiTech Ultimate LS 500 HP EFI Long Runner Cathedral Intake Fuel Injection Master Kits 79407

Ultimate LS 500 HP EFI System With Master Kit Long Runner Cathedral Intake

Part Number: FIF-79407

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

FiTech Ultimate LS 500 HP EFI Short LS3 Port Intake Fuel Injection Master Kits 79411

Ultimate LS 500 HP EFI System With Master Kit Short LS3 Port Intake

Part Number: FIF-79411

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

FiTech Ultimate LS 500 HP EFI Short LS3 Port Intake Fuel Injection Master Kits 79412

Ultimate LS 500 HP EFI System With Master Kit Short LS3 Port Intake

Part Number: FIF-79412

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

FiTech Ultimate LS 500 HP EFI Short LS7 Port Intake Fuel Injection Master Kits 79415

Ultimate LS 500 HP EFI System With Master Kit Short LS7 Port Intake

Part Number: FIF-79415

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

FiTech Ultimate LS 500 HP EFI Short LS7 Port Intake Fuel Injection Master Kits 79416

Ultimate LS 500 HP EFI System With Master Kit Short LS7 Port Intake

Part Number: FIF-79416

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Painless Performance Fuel Injection Harnesses 60217

Painless Performance Fuel Injection Harnesses 60217

Wiring Harness, Fuel Injection, for Engine Swaps, Multi-Port, Mass Airflow, with 10 Circuit Fuse Block/GM Colors, Chevy, LS 4.8, 5.3, 6.0L, Each

Part Number: PRF-60217

4.69 out of 5 stars ( 16 )

Estimated Ship Date: Monday 12/1/2025

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Estimated Ship Date: Monday 12/1/2025

Holley EFI Systems Wiring Harnesses 558-502

Fuel Injection System Wiring Harnesses, Holley EFI, GM LS 58X Crank Sensor, Power, Bosch Injector, Main Harnesses, for HP, Dominator ECUs, Kit

Part Number: HLY-558-502

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

Holley EFI Systems Wiring Harnesses 558-103

Wiring Harnesses, Holley EFI, Replacement, LS Style, 58X/4X Main Harness, Speed Density, for HP, Dominator, EFI Systems Only, Chevy, 6.0-7.0L, Each

Part Number: HLY-558-103

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/1/2025

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Estimated Ship Date: Monday 12/1/2025

Painless Performance Fuel Injection Harnesses 60509

Engine Wiring Harness, Engine Swap, Front Fuse Block, Extra-Long Length, Chevy, 5.7L LS1, Kit

Part Number: PRF-60509

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Monday 12/1/2025

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Estimated Ship Date: Monday 12/1/2025

Painless Performance Fuel Injection Harnesses 60520

Engine Wiring Harness, Engine Swap, Front Fuse Block, Standard Length, Chevy, LS2, Kit

Part Number: PRF-60520

Not Yet Reviewed

Estimated Ship Date: Monday 12/1/2025

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Estimated Ship Date: Monday 12/1/2025

Top Street Performance Standalone Fuel Injection Wiring Harnesses WH1201

Wiring Harness, Fuel Injection System, Standalone, Drive-By-Cable, LS1, Kit

Part Number: TSN-WH1201

Not Yet Reviewed

Estimated Ship Date: Monday 12/1/2025

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Estimated Ship Date: Monday 12/1/2025

Top Street Performance Standalone Fuel Injection Wiring Harnesses WH1200

Wiring Harness, Fuel Injection System, Standalone, Drive-By-Cable, LS1, Kit

Part Number: TSN-WH1200

Not Yet Reviewed

Estimated Ship Date: Monday 12/1/2025

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Estimated Ship Date: Monday 12/1/2025

FiTech Nitro-Port Cast LS1 500 HP Fuel Injection Systems 73103

Fuel Injection System, Nitro-Cast LS1 EFI, 500 HP, 92mm Throttle Body, 36lb. Injectors, Dual O2 Sensor, Cathedral Port, Cable Driven, Chevy, Kit

Part Number: FIF-73103

Not Yet Reviewed

Estimated Ship Date: Monday 12/1/2025

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Estimated Ship Date: Monday 12/1/2025

FiTech Nitro-Port Cast LS1 750 HP Fuel Injection Systems 73105

Fuel Injection System, Nitro-Cast LS1 EFI, 750 HP, 102mm Throttle Body, 55lb. Injectors, Dual O2 Sensor, Cathedral Port, Cable Driven, Chevy, Kit

Part Number: FIF-73105

Not Yet Reviewed

Estimated Ship Date: Monday 12/1/2025

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Estimated Ship Date: Monday 12/1/2025