2003 Fuel Injection Air & Fuel Delivery - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 70003

Fuel Injection System, Ultimate LS EFI, 750 HP, LS1/LS2/LS6, Without Transmission Controller, Kit

Part Number: FIF-70003

4.09 out of 5 stars ( 11 )

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

Standard Motor Fuel Injectors FJ738

Fuel Injector, Replacement, Each

Part Number: SMP-FJ738

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Standard Motor Fuel Injectors for 2001-2002 TOWN CAR, GRAND MARQUIS, 2001-2004 CROWN VICTORIA - FJ459

Fuel Injector, OEM Replacement, Gasoline, Each

Part Number: SMP-FJ459

Not Yet Reviewed

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Injector Dynamics ID1050x Fuel Injectors 1050.48.14.14.6

Injector Dynamics ID1050X Injectors (Gray) Adapter Top (Set of 6)

Part Number: IJD-10504814146

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Painless Performance Fuel Injection Harnesses 60608

Painless Performance Fuel Injection Harnesses 60608

Wiring Harness, Fuel Injection, Multi-Port, Mass Airflow, Chevy, 5.7L, Each

Part Number: PRF-60608

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Holley Terminator X MAX Stealth 4150 24X LS EFI Fuel Injection Systems 550-1030

Fuel Injection Systems, Terminator X Max, Stealth 4150, 24X LS EFI, Four Injector, Throttle Body, Aluminum, Gold, Trans Control, Chevy, 4.8-7.0L, Kit

Part Number: HLY-550-1030

Not Yet Reviewed

Estimated Ship Date: Jan 22, 2026 if ordered today

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Estimated Ship Date: Jan 22, 2026 if ordered today

MSD Atomic EFI Billet Fuel Rails 2721

Fuel Rails, MSD Atomic EFI, Billet Aluminum, Black Anodized, Plumbing Kit, for use with LS1/2/6 AirForce Manifold, Kit

Part Number: MSD-2721

Not Yet Reviewed

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Radium Engineering Fuel Rails for 2002-2006 RSX - 20-0230-02

Fuel Rail, Aluminum, Black Anodized, for use on Honda®, K-Series Engines, Each

Part Number: RDM-20-0230-02

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Trans-Dapt Performance Torque-Curve MPFI Spacers 2566

Throttle Body Spacer, Torque-Curve, Aluminum, Natural, 1 in., Chevy, GMC, Pickup/SUV, Each

Part Number: TRD-2566

1.0 out of 5 stars ( 1 )

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FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 70004

Fuel Injection System, Ultimate LS EFI, 750 HP, LS1/LS2/LS6, With Transmission Controller, Kit

Part Number: FIF-70004

4.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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ICT Billet Throttle Body Adapters 551560

Throttle Body Adapter, Billet Aluminum, Adapts LS 3-Bolt Throttle Body to LS4 Intake Manifold, Kit

Part Number: ICB-551560

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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FAST Big Mouth LT Throttle Bodies 54102

Throttle Body, Big Mouth, Aluminum, Clear Anodized, 102mm, Chevy, LS, Cable Driven, wo/TPS or IAC, Each

Part Number: FST-54102

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Summit Racing™ Max EFI LS 750 Fuel Injection Systems SUM-240511-L102S

Fuel Injection, MAX EFI LS 750 KIT (LS1), Low Profile, 102mm Throttle Body, Satin, Kit

Part Number: SUM-240511-L102S

Not Yet Reviewed

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Injector Dynamics ID1300x Fuel Injectors 1300.60.14.14.8

Fuel Injectors, Injector Dynamics 127 lbs./hr Injectors, 2.783 Length, 14mm Viton O-Rings, Purple Top, Set of 8

Part Number: IJD-13006014148

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

FAST Big Mouth LT Throttle Bodies 54089

Throttle Body, Big Mouth LT, Drive-By-Cable, With Sensors, 87mm Diameter, Cast Aluminum, Mopar, Each

Part Number: FST-54089

Not Yet Reviewed

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Fel-Pro Fuel Injector O-Ring Sets ES 73217

Fuel Injector O-Rings, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Saab, Set

Part Number: FEL-ES73217

Not Yet Reviewed

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Crown Automotive Idle Air Control Valves for 1998-2001 CHEROKEE, 1998-2004 GRAND CHEROKEE, 1997-2004 WRANGLER - 4874373AB

Idle Air Control Valve, Steel, Black, Jeep, 2.5L, 4.0L, Each

Part Number: CWA-4874373AB

Not Yet Reviewed

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Bostech Silver Remanufactured Fuel Injectors DE651

Fuel Injector, Remanufactured, Chevy, GMC, Each

Part Number: BTD-DE651

Not Yet Reviewed

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Standard Motor Fuel Injectors FJ437

Fuel Injector, OEM Replacement, Dodge, 3.9L, 5.9L, Each

Part Number: SMP-FJ437

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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aFe Silver Bullet Throttle Body Spacers for 2003-2008 RAM 1500, RAM 2500, RAM 3500 - 46-32002

Throttle Body Spacer, SilverBullet, Aluminum, Chrysler, Dodge, Passenger Car, Pickup, Mopar Hemi V8, Each

Part Number: AFE-46-32002

4.0 out of 5 stars ( 9 )

Estimated Ship Date: Today

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Chevrolet Performance Fuel Rail Covers for 1999-2004 CORVETTE - 12561503

Fuel Rail Cover, Left, Black, Chevy, Small Block, LS1, Each

Part Number: NAL-12561503

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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FAST XFI Main Wiring Harnesses 301108

Wiring Harness, Fast XFI, ECU, Chevy, Small Block, LS, Kit

Part Number: FST-301108

Not Yet Reviewed

Estimated Ship Date: Mar 11, 2026 if ordered today

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Estimated Ship Date: Mar 11, 2026 if ordered today

ACDelco Fuel Rail O-Ring Kits 17113552

Fuel Rail O-Rings, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Oldsmobile, Saab, Set of 3

Part Number: ADO-17113552

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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FiTech Ultimate LS EFI 500 HP Fuel Injection Systems 70006

Fuel Injection System, Ultimate LS EFI, 500 HP, LS1/LS2/LS6, Without Transmission Controller, Kit

Part Number: FIF-70006

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

Standard Motor Fuel Injectors FJ1270

Fuel Injector, Replacement, Gasoline, Dodge, Ford, Plymouth, Each

Part Number: SMP-FJ1270

Not Yet Reviewed

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