2003 Ford Mustang Exhaust Upgrade Parts
98 parts verified to fit your 2003 Ford Mustang for a complete exhaust upgrade. A moderate DIY project — estimated 2-5 hours.
Cat-Back Exhaust
(16)primary
Borla
Borla 99-04 Ford Mustang GT 4.5L V8 AT/MT RWD 2dr ATAK SS Catback Exhaust
$1249.99
Magnaflow
MagnaFlow Sys C/B 99-04 Ford Mustang Cobra 4.6L 32V
$980.89
BBK
BBK 99-04 Mustang 4.6 GT / Cobra High Flow X Pipe With Catalytic Converters - 2-1/2
$734.71
Magnaflow
MagnaFlow 99-04 Mustang Mach 1 V8 4.6L Dual Split Rear Exit Stainless Cat-Back Performance Exhaust
$1086.20
BBK
BBK 86-04 Mustang Cat Back Kit Varitune Mufflers Stainless Steel Tips
$682.23
Magnaflow
MagnaFlow Sys C/B Ford Mustang Gt 4.6L 99-04
$983.42
Borla
Borla 99-04 Ford Mustang 4.6L V8 Catback Exhaust
$1097.99
JBA
JBA 99-04 Ford Mustang Cobra IRS 4.6L 4V 409SS Dual Rear Exit Cat-Back Exhaust
$858.69
Headers
(28)primary
BBK
BBK 99-04 Mustang V6 Shorty Tuned Length Exhaust Headers - 1-5/8 Silver Ceramic
$461.81
Victor Reinz
MAHLE Original Ford Crown Victoria 11-92 Exhaust Manifold Set
$14.58
BBK
BBK 96-04 Mustang GT Shorty Tuned Length Exhaust Headers - 1-5/8 Titanium Ceramic
$524.79
Fel-Pro
Fel-Pro Ford F-150 Exhaust Manifold Gasket Set
$13.76
BBK
BBK 99-04 Ford Mustang V6 Shorty Tuned Length Exhaust Headers - 1-5/8 Titanium Ceramic
$419.83
BBK
BBK 86-04 Ford Mustang Coyote Swap 1-3/4in Long Tube Headers w/High Flow Catted X-Pipe (Ti Ceramic)
$1500.92
BBK
BBK Ford Modular 4.6 5.4 Exhaust Header Bolts 8mm 1.25 x 30mm (16)
$28.33
Fel-Pro
Fel-Pro Lincoln Navigator MS 95949 Exhaust Manifold Gasket Set
$15.81
Mufflers
(54)primary
Magnaflow
MagnaFlow Conv Univ 2.00inch OBDII Rear 50 State
$503.00
Fel-Pro
Fel-Pro Mercury Grand Marquis Exhaust Pipe Flange Gasket
$3.56
Magnaflow
MagnaFlow Conv Univ 2.25in Inlet/Outlet Angled Offset/Center Calif OBDII
$355.00
Magnaflow
MagnaFlow Conv Univ 2.25inch Angled Inlet
$172.00
Magnaflow
MagnaFlow Conv Univ 2.50inch Angled Inlet
$172.00
Magnaflow
MagnaFlow Conv Universal 2.50 Midbed O2 Rear CA
$538.00
Kooks Headers
Kooks 99-04 Ford Mustang GT / Cobra 3in In x 2 1/2in OEM Out Cat SS X Pipe Kooks HDR Req
$1798.87
Magnaflow
MagnaFlow Conv Univ 2in Inlet/Outlet Angled Offset/Center Oval (California)
$345.00
Exhaust Upgrade for Other Ford Mustang Years
Other Jobs for Your 2003 Ford Mustang
Frequently Asked Questions
What parts do I need for a exhaust upgrade on my 2003 Ford Mustang?
A complete exhaust upgrade on the 2003 Ford Mustang typically requires cat-back exhaust, headers, mufflers. All parts shown on this page are verified to fit your specific vehicle.
How long does a exhaust upgrade take on a 2003 Ford Mustang?
A exhaust upgrade typically takes 2-5 hours and is rated as moderate difficulty. Actual time may vary depending on your experience and the specific parts being replaced.
Can I do a exhaust upgrade myself?
A exhaust upgrade is a moderate DIY project. If you have some mechanical experience and the right tools, you can handle it. Otherwise, consider having a professional do the work.
Are these parts guaranteed to fit my 2003 Ford Mustang?
Yes, all parts on this page are verified to fit the 2003 Ford Mustang using VCDB fitment data from manufacturers. Our fitment information is cross-referenced with industry-standard vehicle databases to ensure accuracy.
What brands make exhaust upgrade parts for the 2003 Ford Mustang?
We carry exhaust upgrade parts from trusted brands including Borla, Magnaflow, BBK, JBA, and Gibson. Filter by brand to find your preferred manufacturer.
How much does a exhaust upgrade cost for a 2003 Ford Mustang?
The cost of a exhaust upgrade for the 2003 Ford Mustang depends on the parts and brands you choose. Browse the parts on this page to see current pricing. Doing the work yourself saves significantly on labor costs.