×
- Live Chat
- 1-888-788-9341
My Garage
My Account
Cart
Exhaust System fit your 2003 Ford Mustang
Currently shopping for
2003 Ford Mustang
Change VehicleCategories Close X
Currently selected
Engine
- Accelerator/Injection Pump Controls
- Air Cleaner
- Balance Shafts and Drive
- Camshaft
- Clutch
- Cooling System Pipes and Hoses
- Crankshaft/Pistons and Bearings
- Cylinder Block and Plugs
- Cylinder Head
- Cylinder Head Cover
- Emission Control - Crankcase
- Engine Assembly Fully Dressed
- Engine Gasket Kits
- Engine Heater
- Exhaust Gas Recirculation
- Exhaust Manifold
- Exhaust System
- Flywheel
- Fuel Filter
- Fuel Injectors and Pipes
- Fuel Lines
- Fuel Pump And Sender Unit
- Fuel Tank
- Fuel Vapor System
- Heat Shields- Exhaust System
- Ignition Coil and Wires/Spark Plugs
- Intake Manifold
- Oil Cooler and Filter
- Oil Pan & Oil Level Indicator
- Oil Pump
- Pulleys and Drive Belts
- Radiator Coolant - Overflow Container
- Speed Control
- Starter Motor
- Supercharger
- Thermostat Housing & Related Parts
- Throttle Housing
- Timing Gear
- Timing Gear Covers
- Water Pump
Other Categories
Body And Paint
Chassis
Electrical
Information And Customization
Transmission
Parts Questions
Sort by:
Recommended
Part No. & Part Description
Price & Qty.
Part No. &
Part Description
Part Description
- Stud
-W705444-S900
Stud- M10
- Fitting Vehicle Options: 6 Cyl 3.8L OHV EFI
- Require Quantity: 4
- Package Quantity: 4
- Base Number: HT1
- Callout Name: HT2
$12.50 $7.314 
-388690-S100
Stud- 3/8"-16
- Fit Note: V8 Appearance Group
- Fitting Vehicle Options: 8 Cyl 4.6L DOHC EFI, 8 Cyl 4.6L DOHC EFI S/C, 8 Cyl 4.6L SOHC EFI, Cobra, GT
- Require Quantity: 2
- Package Quantity: 1
- Callout Name: HT2
- Replaced By: -388690-S427
$79.02 $57.831
- Stud-W705444-S900
Stud- M10
- Fitting Vehicle Options: 8 Cyl 4.6L SOHC EFI, GT
- Require Quantity: 4
- Package Quantity: 4
- Base Number: HT1
- Callout Name: HT1
$12.50 $7.314 - -388690-S100
Stud- 3/8"-16
- Fitting Vehicle Options: 6 Cyl 3.8L OHV EFI
- Require Quantity: 2
- Package Quantity: 1
- Callout Name: HT1
- Replaced By: -388690-S427
$79.02 $57.831 
-N811341-S101
Stud- M10 x 51MM
- Fit Note: V8 Appearance Group
- Fitting Vehicle Options: 8 Cyl 4.6L DOHC EFI, 8 Cyl 4.6L DOHC EFI S/C, Cobra
- Require Quantity: 2
- Package Quantity: 1
- Base Number: HT1
- Callout Name: HT1
- Stud-W705444-S900
Stud- M10
- Fit Note: V8 Appearance Group
- Fitting Vehicle Options: 8 Cyl 4.6L DOHC EFI
- Require Quantity: 4
- Package Quantity: 4
- Base Number: HT1
- Callout Name: HT3
$12.50 $7.314 
-W707188-S900
Stud- M10
- Fitting Vehicle Options: 8 Cyl 4.6L DOHC EFI S/C, Cobra
- Require Quantity: 2
- Package Quantity: 4
- Callout Name: HT3
- Replaced By: -W709209-S900
$48.80 $28.554- -N811341-S101
Stud- M10 x 51MM
- Fitting Vehicle Options: 8 Cyl 4.6L SOHC EFI, GT
- Require Quantity: 2
- Package Quantity: 1
- Base Number: HT1
- Callout Name: HT3
- Screw
-N802455-S426
Screw- M8X1.25X28
- Fitting Vehicle Options: 8 Cyl 4.6L SOHC EFI, GT
- Callout Name: HS1
- Replaced By: -N802455-S439
$4.25 $2.494 
-N811836-S426
Screw- M12 X 30MM
- Fitting Vehicle Options: 6 Cyl 3.8L OHV EFI
- Base Number: N807651-S60
- Callout Name: HS1
- $4.25 $2.494
XC2Z-9F472-AA
Sensor AssySensor - Hego- Located In Front Of Converter
- Fit Note: V8 Appearance Group
- Callout Name: 9F472
- Replaced By: GU2Z-9G444-A
$82.18 $49.721
- Nut
-N800419-S301
Nut - Hex.- M10 x 1.5MM
- Fit Note: V8 Appearance Group
- Fitting Vehicle Options: 8 Cyl 4.6L DOHC EFI, 8 Cyl 4.6L DOHC EFI S/C, Cobra
- Require Quantity: 4
- Package Quantity: 2
- Base Number: N800419-S2
- Callout Name: HN2
$6.50 $3.802 
-45358-S60
Nut - Hex. - Flanged- 3/8"-16
- Fitting Vehicle Options: 8 Cyl 4.6L SOHC EFI, GT
- Require Quantity: 4
- Package Quantity: 1
- Base Number: HN1
- Callout Name: HN2
- Nut-N800419-S301
Nut - Hex.- M10 x 1.5MM
- Fitting Vehicle Options: 8 Cyl 4.6L SOHC EFI, GT
- Require Quantity: 4
- Package Quantity: 2
- Base Number: N800419-S2
- Callout Name: HN4
$6.50 $3.802 - -N802461-S426
Nut - Adjusting Screw- M8 X 1.25
- Fitting Vehicle Options: 6 Cyl 3.8L OHV EFI
- Base Number: HN3
- Callout Name: HN4
$18.75 $13.731
- Nut-N800419-S301
Nut - Hex.- M10 x 1.5MM
- Fitting Vehicle Options: 6 Cyl 3.8L OHV EFI
- Require Quantity: 4
- Package Quantity: 2
- Base Number: N800419-S2
- Callout Name: HN3
$6.50 $3.802 - -N802461-S426
Nut - Adjusting Screw- M8 X 1.25
- Fitting Vehicle Options: 8 Cyl 4.6L SOHC EFI, GT
- Base Number: HN3
- Callout Name: HN3
$18.75 $13.731
-N605904-S426
Bolt- M8 x 1.25 x 19.0 , M8 X1.25X16
- Fit Note: V8 Appearance Group
- Base Number: HB1
- Callout Name: HB1
$13.00 $7.611
1R3Z-9G444-AA
Sensor Assy- Sensor Assy
- Location: Passenger Side
- Fit Note: V8 Appearance Group
- Base Number: 9G444
- Callout Name: 9G444A
- Replaced By: GU2Z-9G444-A
$82.18 $49.721
- Heat Shield
F6ZZ-5E258-JA
Shield- Front Lower
- Location: Driver Side, Lower, Passenger Side
- Fit Note: V8 Appearance Group
- Require Quantity: 2
- Package Quantity: 1
- Base Number: 5E258
- Callout Name: 5E258
$37.04 $26.661 - F4ZZ-5E258-B
Heat Shield- Lower Rear
- Location: Lower Rear
- Fit Note: V8 Appearance Group
- Require Quantity: 2
- Package Quantity: 1
- Base Number: 5E258
- Callout Name: 5E258
XR3Z-5A262-AA
Insulator - Rubber- Rear Of Muffler , RH/LH
- Location: Passenger Side/Driver Side
- Fit Note: V8 Appearance Group
- Require Quantity: 4
- Package Quantity: 1
- Base Number: 5A262
- Callout Name: 5A262
$7.28 $5.111
$11.13 $7.821
- -45358-S60
NutNut - Hex. - Flanged- 3/8"-16
- Fit Note: V8 Appearance Group
- Require Quantity: 4
- Package Quantity: 1
- Base Number: HN1
- Callout Name: HN1
- Converter Assy
2R3Z-5F250-EA
Converter Assy- Fit Note: (-)"GCC"Gulf Cooperative Countries, (-)"Japan", V8 Appearance Group
- Fitting Vehicle Options: 8 Cyl 4.6L DOHC EFI, 8 Cyl 4.6L DOHC EFI S/C, 8 Cyl 4.6L SOHC EFI, Cobra, GT
- Base Number: 5F250
- Callout Name: 5F250
3R3Z-5F250-AA
Converter Assy- Converter Assy
- Fit Note: Canadian Requirements, With 49 State Emission Requirements
- Fitting Vehicle Options: 6 Cyl 3.8L OHV EFI
- Base Number: 5F250
- Callout Name: 5F250
- 3R3Z-5F250-BA
Converter Assy- Fit Note: With California Emission Requiremts
- Fitting Vehicle Options: 6 Cyl 3.8L OHV EFI
- Base Number: 5F250
- Callout Name: 5F250
- Muffler Asy3R3Z-5230-ATL
Muffler Assy - Front- Muffler Asy
- Location: Driver Side
- Fit Note: V8 Appearance Group
- Fitting Vehicle Options: 8 Cyl 4.6L DOHC EFI, Automatic Transmission
- Base Number: 5230
- Callout Name: 5230
- 3R3Z-5230-ATR
Muffler Assy - Front- Muffler Asy
- Location: Passenger Side
- Fit Note: V8 Appearance Group
- Fitting Vehicle Options: 8 Cyl 4.6L DOHC EFI, Automatic Transmission
- Base Number: 5230
- Callout Name: 5230
- 3R3Z-5230-MTL
Muffler Assy - Front- Muffler Asy
- Location: Driver Side
- Fit Note: V8 Appearance Group
- Fitting Vehicle Options: 8 Cyl 4.6L DOHC EFI, Manual Transmission
- Base Number: 5230
- Callout Name: 5230
- 3R3Z-5230-MTR
Muffler Assy - Front- Muffler Asy
- Location: Passenger Side
- Fit Note: V8 Appearance Group
- Fitting Vehicle Options: 8 Cyl 4.6L DOHC EFI, Manual Transmission
- Base Number: 5230
- Callout Name: 5230
XR3Z-5230-AT
Muffler Assy - Front- Fitting Vehicle Options: 6 Cyl 3.8L OHV EFI
- Base Number: 5230
- Callout Name: 5230
$0.00- XR3Z-5230-BA
Muffler Assy - Front- Muffler Asy
- Location: Passenger Side
- Fitting Vehicle Options: 8 Cyl 4.6L DOHC EFI S/C, Cobra
- Base Number: 5230
- Callout Name: 5230
- XR3Z-5230-BB
Muffler Assy - Front- Muffler Asy
- Location: Driver Side
- Fitting Vehicle Options: 8 Cyl 4.6L DOHC EFI S/C, Cobra
- Base Number: 5230
- Callout Name: 5230
XR3Z-5230-BL
Muffler Assy - Front- Muffler Asy
- Location: Driver Side
- Fit Note: (-)"Japan"
- Fitting Vehicle Options: 5-Speed Manual Transmission TR3650, Automatic Transmission, 8 Cyl 4.6L SOHC EFI, GT
- Base Number: 5230
- Callout Name: 5230
- XR3Z-5230-BR
Muffler Assy - Front- Muffler Asy
- Location: Passenger Side
- Fit Note: (-)"Japan"
- Fitting Vehicle Options: 5-Speed Manual Transmission TR3650, Automatic Transmission, 8 Cyl 4.6L SOHC EFI, GT
- Base Number: 5230
- Callout Name: 5230
- Bracket3R3Z-5260-AA
Bracket - Insulator Mounting- Bracket And Insulator , Rear Of Muffler
- Location: Driver Side, Upper
- Production Date: 01/2003-05/2004
- Base Number: 5260
- Callout Name: 5260
- XR3Z-5260-AA
Bracket - Insulator Mounting- Bracket And Insulator , Rear Of Muffler
- Location: Driver Side, Upper
- Production Date: 09/2000-01/2003
- Callout Name: 5260
- Bracket3R3Z-5260-AA
Bracket - Insulator Mounting- Bracket And Insulator , Rear Of Muffler
- Location: Driver Side, Upper
- Production Date: 01/2003-05/2004
- Base Number: 5260
- Callout Name: 5260A
- XR3Z-5260-AA
Bracket - Insulator Mounting- Bracket And Insulator , Rear Of Muffler
- Location: Driver Side, Upper
- Production Date: 09/2000-01/2003
- Callout Name: 5260A
- Bracket3R3Z-5C263-AA
Hanger- Bracket And Insulator , Rear Of Muffler
- Location: Passenger Side, Upper
- Production Date: 01/2003-05/2004
- Base Number: 5260B
- Callout Name: 5260B
- XR3Z-5C263-AA
Hanger- Bracket And Insulator , Rear Of Muffler
- Location: Passenger Side, Upper
- Production Date: 09/2000-01/2003
- Callout Name: 5260B
F6ZZ-9G458-AA
Plug- M20X1.5
- Fit Note: V8 Appearance Group
- Require Quantity: 2
- Package Quantity: 1
- Base Number: 9G458
- Callout Name: 9G458
- XR3Z-5277-BA
SupportBracket- Muffler outlet pipe
- Location: Passenger Side
- Base Number: 5277
- Callout Name: 5277
- Bracket - Exhaust Pipe MountingXR3Z-5A242-BA
Bracket- Bracket And Insulator
- Fitting Vehicle Options: 6 Cyl 3.8L OHV EFI
- Base Number: 5A204
- Callout Name: 5A204
XR3Z-5A246-AA
Bracket- Bracket And Insulator
- Fit Note: V8 Appearance Group
- Fitting Vehicle Options: 8 Cyl 4.6L DOHC EFI, 8 Cyl 4.6L DOHC EFI S/C, 8 Cyl 4.6L SOHC EFI, Cobra, GT
- Require Quantity: 2
- Package Quantity: 1
- Base Number: 5A204
- Callout Name: 5A204
Genuine Ford Parts, the Right Choice
FordPartsGiant.com offers the wholesale prices for genuine 2003 Ford Mustang parts. Parts like Exhaust System are shipped directly from authorized Ford dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 3.8L OHV EFI, 8 Cyl 4.6L DOHC EFI, 8 Cyl 4.6L DOHC EFI S/C, 8 Cyl 4.6L SOHC EFI. Transmission: 4-Speed Automatic Transmission 4R70W (AODE), 4AT 4R75W, 5-Speed Manual Transmission (T450D), 5-Speed Manual Transmission T5OD, 5-Speed Manual Transmission TR3650, 6-Speed Manual Transmission Tremec T56.