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BBK 2011-2014 Mustang GT VariTune Axle Back Exhaust Kit (Aluminized Steel)


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  • $469.99

With our Varitune fully adjustable mufflers now in the hands of thousands of enthusiasts, it was only a matter of time before our engineers would start releasing our complete Varitune axle back exhaust system for the Mustang. 

Available for S197 2005-2010 Mustang GT and 2011-2014 Mustang GT models - the new BBK Varitune axle back exhaust kits offer true full tune ability with our patented adjustable power valve. 

That's right these systems come complete with two of our patented tunable Varitune performance mufflers engineered with the high flow direct fit tubing and hardware for a true bolt on installation. 

BBK Varitune Aluminized Steel Kits 

Also included with each system is a pair of our all new 4" Brushed Stainless Steel tips for maximum looks and performance.

Part Number bbk4101

Finish Natural

Inlet Size (in.) 4


Pipe Material Aluminized Steel

Tail Pipe Outlet OD 4

Tip Size 4.0 in.


  • 2011 2012 2013 2014 FORD MUSTANG GT

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