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2011-14 Ford Mustang 5.0 BBK Varitune Axle Back Exhaust Kit Mild Steel GT - S197

Overview   |  Benefits   |  Features   |  In the Box   |  Description   |  Customer Photos   |  Reviews
Mustang BBK Varitune Axle Back Exhaust Kit Mild Steel (11-14) 5.0
Easily adjust the sound of your 2011-2014 Mustang's exhaust with this BBK Varitune axle back kit!

Item# BBK-4101

Everyday Low Price: $469.99

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Ships from vendor in 2 business days


  • Adjustable For Sound & Performance
  • Bolt On Axle Back Kit
  • Easy To Use


  • Mild Steel Construction
  • 4" Tips
  • High Flow Tubing

What's in the Box

  • (1) RH Varitune Muffler
  • (1) LH Varitune Muffler
  • (2) Axle Back Pipes
  • (2) Exhaust Tips
  • (6) Clamps

Product Description

BBK Varitune Axle Back Kit
Ever wanted to change the sound of your Coyote's exhaust system? This 2011-2014 Mustang BBK Varitune axle back kit allows you to easily adjust the sound level and performance level of your exhaust. With an adjustable chamber valve built into the muffler, you can change the exhaust pitch and flow with the turn of a wrench. The set screw is located on the back of this 3 chamber muffler for easy, on the go adjustments. This allows you to modify sound levels up to 8 decibels across the full adjustment range. Designed to bolt right up to 2011-2014 Mustangs.

High Quality Construction
This Mustang Varitune axle back is made from high grade mild steel for a durable exhaust component that will last a lifetime. This kit features 4" polished tips for an aggressive new look on your S197. 100% bolt on for 2011-2014 Mustang GT.

-Fits 2011-2014 Mustang GT

(4) Customer Photos

Customer Reviews

4 stars
4.0 out of 5 stars - based on 1 reviews

  Great .. BUT
By on 7/14/2014
the exhuast is great . very light wight . controling the sound feature is amazing ..

but I keep getting an annoying sound coming from inside the exhuast especially if the exhuast is fully open . its like something onside is loss ..

other then that it has an ferrari tone sound I love it .. BtW my mods ( Longtube w/ offroad x pipe )

Yes, I would recommend this item to a friend!

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Vehicle Applications

Ford Mustang - 2011 (11) - 2012 (12) - 2013 (13) - 2014 (14)

About This Brand

BBK - Today's Performance
Since 1988 - BBK has dedicated itself to designing and building cutting-edge high-performance parts and accessories for today's EFI-equipped Mustangs and Ford Lightnings while maintaining the OEM quality levels.

From their world-famous line of "Power-Plus-Series" performance throttle bodies to their hundreds of "CNC-Series" performance exhaust offerings - the BBK brand is known for delivering unmatched value and quality. Shop BBK for your Mustang headers, exhaust, cold air intakes, and other performance parts!

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