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Roush Performance 421915

Axle-Back Exhaust Kit 2005-10 Mustang 4.6L

Roush Performance 421915


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Estimated to ship directly from the manufacturer on 05/29/18
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Roush Performance 421915 Axle-Back Exhaust Kit 2005-10 Mustang 4.6L $499.99
Axle-Back Exhaust Kit
  • 2005-10 Mustang 4.6L
  • 2007-10 Mustang GT500 5.4L
  • 409 Stainless Steel
  • Chrome-Plated 304 Stainless Steel Dual Wall 4" Tips

  • Specifications:

    Manufacturer's Part Number:

    Completely redesigned for maximum performance, the Roush Performance Extreme Mustang GT Exhaust gives your 4.6L/5.4L a more aggressive growl. The Extreme Exhaust uses 409 aluminized stainless steel for durability and corrosion resistance. Fully mandrel-bent pipes extend from the axle to 4" chrome dual wall tips with minimal flow restriction.

    Previous versions of Extreme Mufflers have been replaced with straight-through high-flow resonators. The straight-through design is less restrictive and gives this exhaust a tough, raspy sound unique to Roush... it lets people know you're driving something special. Dual wall 304 stainless steel tips are the same design found on Roush 2015 Mustang exhausts; they utilize a special chrome flashing process that reduces cracking and heat discoloration. This kit uses all stock mounting points and comes with hangers prewelded for OE-quality fitment and painless installation. Absolutely no cutting or custom fabrication is required.

  • Aluminized 409 stainless steel
  • Redesigned for improved performance
  • Straight-through resonator
  • 4'' flash-chromed dual wall tips
  • Uses OE hangers and mounting points (Requires no cutting or welding)

  • Some parts are not legal for use in California or other states with similar laws / regulations