2003 - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Wilwood CPB Disc Brake Kits for 1994-2004 MUSTANG - 140-10158

Wilwood CPB Disc Brake Kits for 1994-2004 MUSTANG - 140-10158

Disc Brakes, Rear, Slotted Rotors, Black 1-Piston Calipers, Park Brake, Ford, Kit

Part Number: WIL-140-10158

Not Yet Reviewed

Estimated Ship Date: Jan 14, 2026 if ordered today

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Estimated Ship Date: Jan 14, 2026 if ordered today

Holley Terminator X Engine Management Systems 550-1223

Engine Management Systems, Terminator X, Up to 8-EV6 Injectors, 8-Coil, Analog, O2 Sensor, Plug-and-Play, Controller, Dodge, Chrysler, 5.7L, 6.1L, Kit

Part Number: HLY-550-1223

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Summit Racing™ Turbocharger Hot Side Combo Kits 03-0265

Turbocharger Kits, Hot Side, S400 Style Turbocharger, Forged Aluminum Compressor Wheel, Journal Bearing, Chevy, Kit

Part Number: CMB-03-0265

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Oliver LS Series Connecting Rods L6125STLT8

Connecting Rods, 6.125 LS STD LIGHT S/8

Part Number: OLV-L6125-STLT8

Not Yet Reviewed

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Nitrous Express NXd Stacker Diesel Nitrous Systems NXD4000

Nitrous System; SX2D Dual Stage Diesel Nitrous System; w/Mini Progressive Controller; Incl. 2 Lightning Soleno

Part Number: NEX-NXD4000

Not Yet Reviewed

Estimated Ship Date: Jan 13, 2026 if ordered today

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Estimated Ship Date: Jan 13, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Piston and Ring Kits K1-6480-4030

Piston Set, 506 Viper/SRT K1-FX Series -0cc No Valve Relief Flat Top Piston Set. 4.030 bore

Part Number: DMS-K1-6480-4030

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

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Estimated Ship Date: Jan 16, 2026 if ordered today

Pedders Extreme XA Coilover Kits for 1994-2004 MUSTANG - 162366

Coilover Kit, eXtreme XA, Front and Rear, Ford, Kit

Part Number: PED-162366

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

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Estimated Ship Date: Feb 6, 2026 if ordered today

Spicer Drivetrain Products 35 Spline Differential Carriers Dana 60 10024012

Differential Carrier - Unloaded; Dana 60, 4.56 & Up, Eaton E-Locker

Part Number: SDH-10024012

Not Yet Reviewed

Estimated Ship Date: Jan 29, 2026 if ordered today

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Estimated Ship Date: Jan 29, 2026 if ordered today

COMP Cams Xtreme RPM Series Modular 4V Camshafts 106200

Camshafts, Hydraulic Roller Follower, Advertised Duration 269/265, Lift .425/.425, Ford, V8, 4V, Set of 4

Part Number: CCA-106200

Not Yet Reviewed

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today

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 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Summit Racing™ Pro LS Crank and Rod Kits SUM-CR3658098

Engine Rotating Kits, Pro LS Crank and Rod Kits, Forged 4340 Steel, 6.098 in. Connecting Rod Length, 3.622 in. Stroke, Chevy, 5.3L, 6.0L, 6.2L, Kit

Part Number: SUM-CR3658098

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Summit Racing™ Pro LS Piston and Rod Kits SUM-PR36L9033

Pro LS 4340 Piston and Rod Kit, 347 Cid., 3.903 bore, 3.622 stroke, 6.125 rod, 3cc dome, 11:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings

Part Number: SUM-PR36L9033

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Summit Racing™ Precision Cast Gen 3 5.7L/6.1L Hemi Cylinder Head SUM-HEMI1855761P

Gen. 3 Hemi Cylinder head, 5.7 or 6.1L, 185cc as-cast intake runner,69cc CNC combustion chamber, 2.050 Int./1.590 exh.,600 Lift, 2.42 CSA Pass.side,

Part Number: SUM-HEMI1855761P

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Summit Racing™ Max EFI LS 750 Fuel Injection Systems SUM-240511-T102B

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

Part Number: SUM-240511-T102B

Not Yet Reviewed

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Summit Racing™ Max EFI LS 750 Fuel Injection Systems SUM-240511-T102S

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

Part Number: SUM-240511-T102S

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Summit Racing™ Max EFI LS 750 Fuel Injection Systems SUM-240511-T92S

Fuel Injection, MAX EFI LS 750 KIT (LS1), Tall Profile, 92mm Throttle Body, Satin, Kit

Part Number: SUM-240511-T92S

Not Yet Reviewed

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Aldan American Track Comp Coilover Kits for 1997-2004 CORVETTE - 300272

Coilover Kits, Track Comp, Front and Rear, Adjustable Valving, Black Springs, Chevrolet, Kit

Part Number: AAX-300272

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 14, 2026 if ordered today

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Estimated Ship Date: Jan 14, 2026 if ordered today

Summit Racing™ Precision Cast Gen 3 5.7L/6.1L Hemi Cylinder Head SUM-HEMI2125761D

Gen. 3 Hemi CNC Cylinder head, 5.7/6.1L, 212cc Int. runner, 69cc CNC combustion chamber, 2.125 Int./1.650 exh..600 Lift, 2.88 CSA,Dr..side,

Part Number: SUM-HEMI2125761D

Not Yet Reviewed

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Summit Racing™ Precision Cast Gen 3 5.7L/6.1L Hemi Cylinder Head SUM-HEMI2125761P

Gen. 3 Hemi CNC Cylinder head, 5.7/6.1L, 212cc Int. runner, 69cc CNC combustion chamber, 2.125 Int./1.650 exh..600 Lift, 2.88 CSA,Pass.side,

Part Number: SUM-HEMI2125761P

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BDS Suspension Lift Kits with Fox 2.0 Shocks for 1999-2004 F-250 SUPER DUTY, F-350 SUPER DUTY - BDS322FS

99-04 F250/F350 CurveU 4/3 Block w/top

Part Number: BDX-BDS322FS

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

BDS Suspension Lift Kits with Fox 2.0 Shocks for 1999-2004 F-250 SUPER DUTY, F-350 SUPER DUTY - BDS309FS

Up-99 F250/350 4/2.5 Block & AAL no top

Part Number: BDX-BDS309FS

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Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

VEGE Remanufactured Drive Axle Assemblies for 2003-2011 CROWN VICTORIA, GRAND MARQUIS - RAX2164B

Rear Axle, FORD SEDAN 03-11 AXLE

Part Number: VRE-RAX2164B

Not Yet Reviewed

Estimated Ship Date: Feb 5, 2026 if ordered today

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Estimated Ship Date: Feb 5, 2026 if ordered today

FiTech Retro LS TBI 650 HP System Inline Pump/Regulator Fuel Injection Master Kits 31071

Retro LS 650 HP Classic Gold EFI System With Inline Fuel Delivery & Regulator Master Kit

Part Number: FIF-31071

Not Yet Reviewed

Estimated Ship Date: Feb 19, 2026 if ordered today

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Estimated Ship Date: Feb 19, 2026 if ordered today

VEGE Remanufactured Drive Axle Assemblies for 1999-2004 SIERRA 1500, SILVERADO 1500 - RAX1955D

Rear Axle, GM 1500 2/4WD AXLE GT5

Part Number: VRE-RAX1955D

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 70009

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

Part Number: FIF-70009

Not Yet Reviewed

Estimated Ship Date: Feb 19, 2026 if ordered today

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Estimated Ship Date: Feb 19, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

FiTech Ultimate LS EFI 500 HP Fuel Injection Systems 70007

3.5 out of 5 stars ( 10 )

Estimated Ship Date: Jan 12, 2026

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2003 Parts and Accessories