Modification guide & products

2003 Ford Mustang Exhaust Mods & Products

Full lineup of better sound upgrades for the 2003 Ford Mustang, with 12 compatible Amazon products across 1 upgrade type.

Custom Mufflers

$100–$1,000 parts

Install: $150–$300 DIY: "Difficult, needs a fair bit of time and patience." Popularity: 42%

Not satisfied with the sound inside? Want everyone around you to know that you are the fastest and most powerful racer in the whole neighborhood? Install a custom muffler on your car and your ride will sing in a whole new way.

TOTALFLOW 20316 Straight Through Universal Exhaust Muffler | 409 Stainless Steel | 2.5 Inch Inner Diameter Inlet/Outlet

$28.66

Flowmaster 817574 American Thunder 409S Stainless Steel Dual Dump Exit Cat-Back Exhaust System with Aggressive Sound, Black muffler, natural tubing

$485.95

TOTALFLOW 20414 Straight Through Universal Exhaust Muffler | 409 Stainless Steel | 2 Inch Inner Diameter Inlet / Outlet

$55.25

DNA MOTORING CBE-FM96GTV8-NRT Stainless Steel Cat Back Exhaust System [Compatible with 96-04 Ford Mustang GT V8]

$289.99

SR Performance Cat-Back Exhaust Compatible with 99-04 Mustang GT, Mach 1

$334.99

Borla 140458 ATAK Cat-Back Exhaust System for Mustang GT

$1,059.10

SLP M31007 1999-2004 Mustang GT / Mach 1 LoudMouth Exhaust System

$619.99

TOTALFLOW 20415 Straight Through Universal Exhaust Muffler | 409 Stainless Steel | 2.25 Inch Inner Diameter Inlet / Outlet

$56.91

DNA MOTORING CBE-FM96GTV8 Stainless Steel Cat Back Exhaust System [Compatible with 96-04 Ford Mustang GT V8]

$269.99

TOTALFLOW 20015 Straight Through Universal Exhaust Muffler - 409 Stainless Steel - 2.25 Inch Inner Diameter Inlet / Outlet

$21.52

muffler resonator exhaust cat back kit fits: 1999-2004 Ford Mustang 3.8L

$196.88

TOTALFLOW 22416 Straight Through Universal Exhaust Muffler | 304 Stainless Steel | 2.5 Inch Inner Diameter Inlet / Outlet

$80.52

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