Magnaflow Competition Series Cat-Back System — 1999-2004 Ford Mustang GT 4.6L

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SKU: MAG15673

About Magnaflow MagnaFlow has been America's leader in stainless steel ...Read more

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Sale price$1,239.92 Regular price$1,386.56
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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
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Sizing & Fit

About Magnaflow

MagnaFlow has been America's leader in stainless steel performance exhaust since 1981. From the rumbly Pro Street to the OE-quiet Touring series, every MagnaFlow exhaust delivers measurable HP, an unmistakable note, and a lifetime warranty.

Watch in action

Magnaflow 15673 Competition Series Cat-Back Exhaust for 1999-2004 Ford Mustang GT

Unleash an aggressive, race-inspired exhaust note with the Magnaflow 15673 Competition Series Cat-Back Performance Exhaust System, specifically designed for the 1999-2004 Ford Mustang GT 4.6L. This system is engineered to deliver a deep, resonant tone that commands attention, coupled with dyno-proven performance gains. Featuring fast-flowing mandrel-bent 2.5-inch main piping and two Straight-Through mufflers, it ensures maximum exhaust flow for enhanced horsepower and torque.

Key Features:

  • Aggressive Sound: Delivers a powerful exterior sound level that complements the Mustang's performance.
  • Performance Optimized: Mandrel-bent 2.5-inch piping and Straight-Through mufflers maximize exhaust flow.
  • Dual Split Rear Exit: Features a sporty dual split rear exit configuration.
  • Premium Tips: Includes two 3.5-inch polished stainless steel clamp-on tips with a single wall, angle-cut edge for a custom look.
  • Vehicle Specific Fitment: Designed for 1999-2004 Ford Mustang GT models, including the 2001 GT Bullitt and 2003-2004 Mach 1.
  • Durable Stainless Steel: Constructed from high-quality stainless steel for longevity and corrosion resistance.

The Magnaflow 15673 system replaces your stock exhaust from the catalytic converter back, offering a significant upgrade in both sound and performance. While providing an aggressive exterior tone, the interior sound level is kept moderate, ensuring a comfortable driving experience. Elevate your Mustang's presence on the road and track with this exceptional cat-back system.

Find the best Magnaflow exhaust systems at GGCRACING.

About Magnaflow

MagnaFlow has been America's leader in stainless steel performance exhaust since 1981. From the rumbly Pro Street to the OE-quiet Touring series, every MagnaFlow exhaust delivers measurable HP, an unmistakable note, and a lifetime warranty.

Watch in action

Magnaflow 15673 Competition Series Cat-Back Exhaust for 1999-2004 Ford Mustang GT

Unleash an aggressive, race-inspired exhaust note with the Magnaflow 15673 Competition Series Cat-Back Performance Exhaust System, specifically designed for the 1999-2004 Ford Mustang GT 4.6L. This system is engineered to deliver a deep, resonant tone that commands attention, coupled with dyno-proven performance gains. Featuring fast-flowing mandrel-bent 2.5-inch main piping and two Straight-Through mufflers, it ensures maximum exhaust flow for enhanced horsepower and torque.

Key Features:

  • Aggressive Sound: Delivers a powerful exterior sound level that complements the Mustang's performance.
  • Performance Optimized: Mandrel-bent 2.5-inch piping and Straight-Through mufflers maximize exhaust flow.
  • Dual Split Rear Exit: Features a sporty dual split rear exit configuration.
  • Premium Tips: Includes two 3.5-inch polished stainless steel clamp-on tips with a single wall, angle-cut edge for a custom look.
  • Vehicle Specific Fitment: Designed for 1999-2004 Ford Mustang GT models, including the 2001 GT Bullitt and 2003-2004 Mach 1.
  • Durable Stainless Steel: Constructed from high-quality stainless steel for longevity and corrosion resistance.

The Magnaflow 15673 system replaces your stock exhaust from the catalytic converter back, offering a significant upgrade in both sound and performance. While providing an aggressive exterior tone, the interior sound level is kept moderate, ensuring a comfortable driving experience. Elevate your Mustang's presence on the road and track with this exceptional cat-back system.

Find the best Magnaflow exhaust systems at GGCRACING.

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