BBK Stainless Steel Varitune Offset/Offset Oval Muffler; 3-Inch Inlet/3-Inch Outlet (Universal; Some Adaptation May Be Required)

Video Review & Installation

Hey I’m Justin with AmericanMuscle.com and this is my brief breakdown of BBK’s Varitune muffler available for all later generation Mustangs. The Vari-tune is a fully tunable muffler allowing the owner to change his or her tone in a matter of minutes simply by adjusting the power valve here on the muffler itself. By opening and closing the valve you are essentially changing from a 3 chambered muffler and a single chambered muffler. This allows you to go from a relatively quiet exhaust setup to a loud, aggressive setup in a matter of minutes using nothing more than a simple wrench to adjust the power valve. To see how everything works BBK was nice enough to send a sample that has been cut-up to expose the inner workings of the muffler itself. As you can see with the power valve fully closed like it is now, the exhaust has to travel through all 3 chambers which is going to keep the sounds levels down considerably. However, as soon as you open up that power valve all the way, you’re essentially bypassing these first two chambers and it’s at that point the exhaust becomes much louder and you might pick up a few horsepower at the rear wheels thanks to the increased flow. If you’re not watching this vehicle currently on our site and you want to hear some sound clips of this muffler in action, just click on the link to do so. BBK does offer the exhaust in both aluminized steel and full-stainless, with a slight difference in price between the two. The exhaust does come with these 4” polished tips standard, but there are optional 4” black tip available just in case you wanted to switch up the look a little bit. If you have any questions about going with a Varitune setup for your ride, just get in touch with one of our Mustang experts, you can give them a call at 855 422 7439 or drop them an email at [email protected]. As always you can find the Varitune and other great products from BBK right here at AmericanMuscle.com, and if you want to see my overviews on these products in addition to other great products for your ride, just subscribe to our YouTube channel by clicking the link below or up in the corner.