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Ford made plenty of changes to the Mustang lineup in 2003. New colors called Dark Shadow Grey and Redfire were added to the options list to replace Mineral Grey and Laser Tint Red. The base model got the 1999 and 2001 Cobra hood. A new model called the Pony Edition was added to the lineup. It included the GT hood scoop, "Stampeding Pony" graphics, polished 16 inch wheels, and black inserts in the bumpers. The 3.8-liter V6 carries over from 2002 generating 190-hp with the split-port induction to improve gas mileage. The 4.6-liter V8 in the GT carries over 260-horses from last year with large valves, equal-length manifold runners, and high-lift cams.  Ford also resurrected the venerable Mach 1 moniker for 2003. This limited-edition model had a number of unique enhancements. The Mach 1 got a new 4.6L DOHC V8 which produced 305 horsepower. This motor got air from a functional "Shaker" hood scoop. It also sported a flat black stripe that ran down the hood, black "Mach 1" side stripes, a black spoiler, and rolled exhaust tips. The seats were made from Comfort Weave like the originals. New Magnum 500 wheels were the only wheel offered on the Mach 1. A Mach could be had in Dark Shadow Grey, Torch Red, Black, Zinc Yellow, Oxford White, and Azure Blue, the latter of which was exclusive to the Mach 1. The 2003 Cobra, or “Terminator”, makes a triumphant return, this time packing a brand new standard Eaton supercharger along with some other power upgrades as a support system. This new engine is an M112 roots style supercharged engine and puts down an impressive 390-RWHP. Upgraded engine components consist of Manley H beam connecting rods, specially designed Zolner pistons, heavy duty cast iron block, and aluminum flywheel. The 2003 Cobra also features a Tremec T-56 six-speed transmission, the first one offered in a Mustang, but is also available in a beefed up automatic. Some more improvements from 2001 consist of spring rates, Bilstein dampers on the front and rear, more durable brake pads. However, the 2003 Cobra’s rear axle carries over an independent (IRS) setup from 2001. All 2003 (and 2004) Cobras ride on 17 x 9 aluminum chrome wheels wrapped in Goodyear Eagle F1 Z rated tires and are available in coupe and convertible and the only year the Cobra is available in Sonic Blue. American Muscle is your source for aftermarket '03 Mustang parts. We have what you are looking for to get that edge over the competition. Check out our sections below. We have a great selection of 4.6 performance parts, accessories, gears, and more. Make sure you check out all the bargains we have available for your GT or V6 Mustang. You can make sure that your 4.6 has a great set of wheels or performance upgrades that will keep you ahead of the rest of the Mustang stampede.

2003 FORD MUSTANG PARTS & PERFORMANCE (V6, GT & SPECIALTY)

2003 Ford Mustang

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2003 FORD MUSTANG SPECS

2003 Performance
  • Engine
    HP
    TQ
    0-60
    1/4M
  • 3.8L V6
    193
    225
    9.9 sec
    N/A
  • 4.6L SOHC V-8
    260
    302
    5.5 sec
    14.1 sec
  • 4.6L DOHC V-8
    305
    320
    5.2 sec
    14.0 sec
  • 4.6L DOHC Supercharged V-8
    390
    390
    4.5 sec
    12.9 sec
2003 Production Numbers
  • Model
    Quantity
  • Standard Coupe
    59,943
  • Standard Convertible
    26,500
  • GT Coupe
    26,238
  • GT Convertible
    15,518
  • Mach 1
    9,652
  • SVT Cobra Coupe
    8,395
  • SVT Cobra Convertible
    5,082
2003 Mustang Exterior Colors
  • Color
    Code
  • Black
    UA
  • True Blue
    L2
  • Sonic Blue
    SN
  • Azure Blue (Mach 1 Only)
    L5
  • Dark Shadow Gray
    CX
  • Silver Metallic
    YN
  • Redfire
    G2
  • Torch Red
    D3
  • Zinc Yellow
    B7
  • Tropic Green
    SU
  • Oxford White
    Z1
  • Mineral Gray (Discontinued replaced by Dark Shadow Gray)
    TK
  • Satin Silver (Discontinued replaced by Silver Metallic)
    TL
2003 Retail Prices
  • Model
    Quantity
  • Standard Coupe
    $18,240
  • Standard Convertible
    $23,940
  • GT Coupe
    $24,110
  • GT Convertible
    $28,415
  • Mach 1
    $28,995
  • SVT Cobra Coupe
    $34,750
  • SVT Cobra Convertible
    $38,995
2003 Production Numbers By Color
  • Color
    Code
  • Black
    24,937
  • True Blue
    10,245
  • Sonic Blue
    7,566
  • Azure Blue (Mach 1 Only)
    2,223
  • Dark Shadow Gray
    21,934
  • Silver Metallic
    21,216
  • Redfire
    20,908
  • Torch Red
    14,992
  • Zinc Yellow
    10,141
  • Tropic Green
    3,445
  • Oxford White
    16,449
  • Mineral Gray (Discontinued replaced by Dark Shadow Gray)
    452 (All Cobra)
  • Satin Silver (Discontinued replaced by Silver Metallic)
    323 (All Cobra)
2003 Mustang Interior Trim Colors
  • Color
    Code
  • Dark Charcoal
    N/A
  • Medium Graphite
    N/A
  • Medium Parchment
    N/A
  • Oxford White
    N/A

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