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2011-2014 Mustang 5.0 Roush Axleback System

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Your Mustang 5.0 will never sound better.

The ROUSH® 2011-2014 Mustang Exhaust Kit with Round Tips is a innovative new exhaust system from ROUSH that features a open-chambered design muffler, as opposed to conventional fiberglass-packing.

The result is a exhaust for the Mustang that delivers a unique and less inhibited sound, increased longevity (there is no fiberglass that will break-down with time) and increased air flow for increased horsepower and torque by increasing airflow and reducing back pressure. Another added benefit of this system is the lack of the in-cockpit boom normally found with performance exhaust systems at cruising speeds.

Not only does the ROUSH 2011-2014 Mustang Exhaust sound good, it looks good as well. The round tips are made from high-quality 304 stainless steel and are finished with a chrome flashing process.

Conventional chrome plating uses layers of bonded chemicals to achieve its shiny appearance, which are susceptible to cracking and flaking especially when exposed to high temperatures (like exhaust). However, the chrome flashing used in this system is bonded micro-porously to the metal surface, and is as a result impervious to cracking from localized damage. This method of chroming is also resistant to heat color change.

The mufflers and inlet pipe are made from 409 stainless steel for increased durability. This kit carries a 3 year limited warranty.

This Mustang Exhaust is quick and easy to install and uses the factory hanger mountings, so you don't have to fabricate your own. This kit also features new OE-quality spherical clamps for a better fit. This kit has no negative effect on emissions.

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Part # Price
421127 $710.62    
$511.65*    
* - American pricing is for cross border comparative shopping purposes only, and reflects approximate current exchange rates between the Canadian and American Dollar, plus the 3-4% surcharge that Visa/Mastercard charge Canadian customers for purchases made in US dollars