SLP LoudMouth Cat-Back Exhaust System — Fits 1999-2004 Ford Mustang 4.6L

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About SLP

SLP engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full SLP lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Unleash the Sound: SLP LoudMouth Cat-Back Exhaust for 1999-2004 Mustang 4.6L

Give your 1999-2004 Ford Mustang 4.6L the aggressive exhaust note it deserves with the SLP LoudMouth Cat-Back Exhaust System. This system is designed to deliver a bold, race-inspired sound that perfectly complements the performance of your Mustang.

Experience the SLP Advantage:

  • Aggressive Tone: The LoudMouth design provides a deep, throaty, and attention-grabbing exhaust sound that will turn heads.
  • Performance Enhancement: Engineered for optimal exhaust flow, this system can contribute to improved engine performance and throttle response.
  • Durable Construction: Made from high-quality materials to withstand the demands of spirited driving and ensure long-lasting performance.
  • Direct Fit Application: Designed for a precise fit on 1999-2004 Ford Mustang models, including GT, Mach 1, and SVT Cobra variants.

This SLP LoudMouth Cat-Back Exhaust is the perfect upgrade for Mustang enthusiasts looking to significantly enhance their vehicle's sound profile. It offers an exhilarating auditory experience that matches the sporty character of the New Edge Mustang.

This system fits:

  • 1999-2004 Ford Mustang Base
  • 1999-2004 Ford Mustang GT
  • 2001 Ford Mustang GT Bullitt
  • 2003-2004 Ford Mustang Mach 1
  • 1999, 2001, 2003-2004 Ford Mustang SVT Cobra
  • 2003 Ford Mustang SVT Cobra 10th Anniversary
  • 2000 Ford Mustang SVT Cobra R

Get the iconic SLP sound for your Mustang at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1999 Ford Mustang SVT Cobra
1999-2004 Ford Mustang Base
1999-2004 Ford Mustang GT
2001 Ford Mustang GT Bullitt
2001 Ford Mustang SVT Cobra
2003 Ford Mustang SVT Cobra 10th Anniversary
2003-2004 Ford Mustang Mach 1
2003-2004 Ford Mustang SVT Cobra

Product Details

Product Description
Part Numbers
Sizing & Fit

About SLP

SLP engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full SLP lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Unleash the Sound: SLP LoudMouth Cat-Back Exhaust for 1999-2004 Mustang 4.6L

Give your 1999-2004 Ford Mustang 4.6L the aggressive exhaust note it deserves with the SLP LoudMouth Cat-Back Exhaust System. This system is designed to deliver a bold, race-inspired sound that perfectly complements the performance of your Mustang.

Experience the SLP Advantage:

  • Aggressive Tone: The LoudMouth design provides a deep, throaty, and attention-grabbing exhaust sound that will turn heads.
  • Performance Enhancement: Engineered for optimal exhaust flow, this system can contribute to improved engine performance and throttle response.
  • Durable Construction: Made from high-quality materials to withstand the demands of spirited driving and ensure long-lasting performance.
  • Direct Fit Application: Designed for a precise fit on 1999-2004 Ford Mustang models, including GT, Mach 1, and SVT Cobra variants.

This SLP LoudMouth Cat-Back Exhaust is the perfect upgrade for Mustang enthusiasts looking to significantly enhance their vehicle's sound profile. It offers an exhilarating auditory experience that matches the sporty character of the New Edge Mustang.

This system fits:

  • 1999-2004 Ford Mustang Base
  • 1999-2004 Ford Mustang GT
  • 2001 Ford Mustang GT Bullitt
  • 2003-2004 Ford Mustang Mach 1
  • 1999, 2001, 2003-2004 Ford Mustang SVT Cobra
  • 2003 Ford Mustang SVT Cobra 10th Anniversary
  • 2000 Ford Mustang SVT Cobra R

Get the iconic SLP sound for your Mustang at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1999 Ford Mustang SVT Cobra
1999-2004 Ford Mustang Base
1999-2004 Ford Mustang GT
2001 Ford Mustang GT Bullitt
2001 Ford Mustang SVT Cobra
2003 Ford Mustang SVT Cobra 10th Anniversary
2003-2004 Ford Mustang Mach 1
2003-2004 Ford Mustang SVT Cobra

Product Details

Product Description

About SLP

SLP engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full SLP lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Unleash the Sound: SLP LoudMouth Cat-Back Exhaust for 1999-2004 Mustang 4.6L

Give your 1999-2004 Ford Mustang 4.6L the aggressive exhaust note it deserves with the SLP LoudMouth Cat-Back Exhaust System. This system is designed to deliver a bold, race-inspired sound that perfectly complements the performance of your Mustang.

Experience the SLP Advantage:

  • Aggressive Tone: The LoudMouth design provides a deep, throaty, and attention-grabbing exhaust sound that will turn heads.
  • Performance Enhancement: Engineered for optimal exhaust flow, this system can contribute to improved engine performance and throttle response.
  • Durable Construction: Made from high-quality materials to withstand the demands of spirited driving and ensure long-lasting performance.
  • Direct Fit Application: Designed for a precise fit on 1999-2004 Ford Mustang models, including GT, Mach 1, and SVT Cobra variants.

This SLP LoudMouth Cat-Back Exhaust is the perfect upgrade for Mustang enthusiasts looking to significantly enhance their vehicle's sound profile. It offers an exhilarating auditory experience that matches the sporty character of the New Edge Mustang.

This system fits:

  • 1999-2004 Ford Mustang Base
  • 1999-2004 Ford Mustang GT
  • 2001 Ford Mustang GT Bullitt
  • 2003-2004 Ford Mustang Mach 1
  • 1999, 2001, 2003-2004 Ford Mustang SVT Cobra
  • 2003 Ford Mustang SVT Cobra 10th Anniversary
  • 2000 Ford Mustang SVT Cobra R

Get the iconic SLP sound for your Mustang at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1999 Ford Mustang SVT Cobra
1999-2004 Ford Mustang Base
1999-2004 Ford Mustang GT
2001 Ford Mustang GT Bullitt
2001 Ford Mustang SVT Cobra
2003 Ford Mustang SVT Cobra 10th Anniversary
2003-2004 Ford Mustang Mach 1
2003-2004 Ford Mustang SVT Cobra

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