Magnaflow Competition Series Cat-Back Exhaust — 2005-2009 Ford Mustang 4.6L V8 3in.

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SKU: MAG16674
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Sale price$1,581.99 Regular price$1,769.07
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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 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 Competition Series Cat-Back Exhaust System for 2005-2009 Ford Mustang 4.6L V8

Dominate the streets with the Magnaflow Competition Series Cat-Back Performance Exhaust System (16674), engineered for the 2005-2009 Ford Mustang equipped with the 4.6L V8 engine. This system is designed for enthusiasts who crave an aggressive, attention-grabbing exhaust note that perfectly complements the raw power of their Mustang. Experience significant performance gains and a sound that announces your arrival with authority.

Key Features and Benefits:

  • Aggressive Exhaust Tone: Delivers a loud, commanding, and aggressive sound profile that truly embodies the spirit of the Mustang.
  • Maximum Performance: Optimized for high-flow, this system maximizes horsepower and torque gains through unrestricted exhaust passage.
  • Durable Stainless Steel: Constructed from high-quality, corrosion-resistant stainless steel for enduring performance and a sleek appearance.
  • 3-Inch Mandrel-Bent Piping: Features large, 3-inch diameter mandrel-bent tubing to ensure maximum exhaust gas velocity and minimal restriction.
  • Dual Straight-Through Mufflers: Two competition-focused, straight-through mufflers provide a powerful sound and optimal flow.
  • Dual Split Rear Exit: The system exits with a dual split at the rear, featuring 4-inch polished, double-wall angle-cut tips for a race-inspired look.
  • Cat-Back Layout: Replaces the factory exhaust system from the catalytic converter back, offering a complete performance upgrade.

The Magnaflow 16674 Competition Series exhaust is built for those who demand the most aggressive sound and performance from their Mustang. Its robust construction ensures it can handle the rigors of track days and spirited driving. Make a statement with this ultimate performance exhaust upgrade for your 2005-2009 Ford Mustang, available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2005-2009 Ford Mustang GT
2007-2008 Ford Mustang Shelby GT
2007-2009 Ford Mustang Shelby GT500
2008-2009 Ford Mustang Bullitt

Product Details

Product Description
Part Numbers
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 Competition Series Cat-Back Exhaust System for 2005-2009 Ford Mustang 4.6L V8

Dominate the streets with the Magnaflow Competition Series Cat-Back Performance Exhaust System (16674), engineered for the 2005-2009 Ford Mustang equipped with the 4.6L V8 engine. This system is designed for enthusiasts who crave an aggressive, attention-grabbing exhaust note that perfectly complements the raw power of their Mustang. Experience significant performance gains and a sound that announces your arrival with authority.

Key Features and Benefits:

  • Aggressive Exhaust Tone: Delivers a loud, commanding, and aggressive sound profile that truly embodies the spirit of the Mustang.
  • Maximum Performance: Optimized for high-flow, this system maximizes horsepower and torque gains through unrestricted exhaust passage.
  • Durable Stainless Steel: Constructed from high-quality, corrosion-resistant stainless steel for enduring performance and a sleek appearance.
  • 3-Inch Mandrel-Bent Piping: Features large, 3-inch diameter mandrel-bent tubing to ensure maximum exhaust gas velocity and minimal restriction.
  • Dual Straight-Through Mufflers: Two competition-focused, straight-through mufflers provide a powerful sound and optimal flow.
  • Dual Split Rear Exit: The system exits with a dual split at the rear, featuring 4-inch polished, double-wall angle-cut tips for a race-inspired look.
  • Cat-Back Layout: Replaces the factory exhaust system from the catalytic converter back, offering a complete performance upgrade.

The Magnaflow 16674 Competition Series exhaust is built for those who demand the most aggressive sound and performance from their Mustang. Its robust construction ensures it can handle the rigors of track days and spirited driving. Make a statement with this ultimate performance exhaust upgrade for your 2005-2009 Ford Mustang, available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2005-2009 Ford Mustang GT
2007-2008 Ford Mustang Shelby GT
2007-2009 Ford Mustang Shelby GT500
2008-2009 Ford Mustang Bullitt

Product Details

Product Description

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 Competition Series Cat-Back Exhaust System for 2005-2009 Ford Mustang 4.6L V8

Dominate the streets with the Magnaflow Competition Series Cat-Back Performance Exhaust System (16674), engineered for the 2005-2009 Ford Mustang equipped with the 4.6L V8 engine. This system is designed for enthusiasts who crave an aggressive, attention-grabbing exhaust note that perfectly complements the raw power of their Mustang. Experience significant performance gains and a sound that announces your arrival with authority.

Key Features and Benefits:

  • Aggressive Exhaust Tone: Delivers a loud, commanding, and aggressive sound profile that truly embodies the spirit of the Mustang.
  • Maximum Performance: Optimized for high-flow, this system maximizes horsepower and torque gains through unrestricted exhaust passage.
  • Durable Stainless Steel: Constructed from high-quality, corrosion-resistant stainless steel for enduring performance and a sleek appearance.
  • 3-Inch Mandrel-Bent Piping: Features large, 3-inch diameter mandrel-bent tubing to ensure maximum exhaust gas velocity and minimal restriction.
  • Dual Straight-Through Mufflers: Two competition-focused, straight-through mufflers provide a powerful sound and optimal flow.
  • Dual Split Rear Exit: The system exits with a dual split at the rear, featuring 4-inch polished, double-wall angle-cut tips for a race-inspired look.
  • Cat-Back Layout: Replaces the factory exhaust system from the catalytic converter back, offering a complete performance upgrade.

The Magnaflow 16674 Competition Series exhaust is built for those who demand the most aggressive sound and performance from their Mustang. Its robust construction ensures it can handle the rigors of track days and spirited driving. Make a statement with this ultimate performance exhaust upgrade for your 2005-2009 Ford Mustang, available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2005-2009 Ford Mustang GT
2007-2008 Ford Mustang Shelby GT
2007-2009 Ford Mustang Shelby GT500
2008-2009 Ford Mustang Bullitt

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