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Adjustable For Sound & Performance
Bolt On Axle Back Kit
Easy To Use
Mild Steel Construction
High Flow Tubing
What's in the Box
(1) RH Varitune Muffler
(1) LH Varitune Muffler
(2) Axle Back Pipes
(2) Exhaust Tips
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.
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!
2013 Roush Stage 3 Mustang. 650 RWHP, running on E-85, Roush Cold Air Intake, 82mm Supercharger Pulley, ID 1000 Injectors, Fore Dual Fuel Pump System with -8 Feed/Return Lines, Michelin Pilot Super Sp...