BBK Varitune Axle-Back Exhaust; Stainless Steel (11-14 Mustang GT)

Video Review & Installation

Hey Justin with AmericanMuscle.com and I'm here with one of the most exciting new products to come along in sometime. I'm talking about BBK's Vari-tune fully tunable axle back exhaust system fitting all 2011 and newer Mustangs. Alright, before we start breaking down the Varitune this would be a great time to tell you to subscribe to our YouTube channel, just by clicking on the link below or on the AM logo up in the corner there. That's so you can stay up to date with the latest products, like these Varitunes, for your Mustang. Alright, getting into the Varitunes themselves, as the name suggests, this is a fully tunable muffler, so basically by adjusting this screw on the end of the muffler you can essentially change from a 3 chamber muffler to a single chamber muffler in a matter of minutes. Of course this gives you the best of both worlds by offering an exhaust that can be both loud or quiet depending on your mood. With the power valve fully closed like it is now, the exhaust tone will take on the characteristics of a 3 chambered muffler - it's going to be relatively soft and relatively quiet. But by opening the power valve all the way you are bypassing those first two chambers and it's at that point the muffler takes on the characteristics of a single chambered muffler. It's going to get a lot louder, and you're also going to get those rough around the edges sounds coming off the revs, all those pops and subtle backfires. Of course you can experiment with the valve being half open to see what kind of tone that will give you as well. So with the Varitones bolted up to our 14 GT, we were interested to see if they would make any power with the valves fully open as opposed to fully closed, well after a few Dyno pulls we actually put down about 8 more horsepower at the rear wheels with that power valve fully open. So now that you know what the Varitune does why would you want something like this? Well we as car people have the tendency to change our minds over time. So even though having the loudest exhaust possible when you first pick up your Mustang is the only way to roll for most Mustang owners out there, over the years you might change your mind a little bit, and you'll probably want to tone it down a little bit. That's where the Varitune comes into play. The Varitune gives you the luxury of having a loud and a tame muffler in one package and allows you to change your tone easily as your preferences change. Getting into the actual construction of the Varitune, BBK offers this exhaust in aluminized steel and full-stainless, with a slight difference in price between the two. In addition we're looking at 3" mandrel bent tubing, and these brightly polished 4" tips, with an optional black tip available from the drop down menu just in case you wanted to switch up the look a little bit. If you're not watching this on our site already, go ahead and click the link below to head back to our site to see a wide variety of BBK products available for your Mustang. Installing the Varitune is just like installing any other axle back for your Mustang and can easily be done in about an hour using basic hand tools. Adjusting your sound is even easier and only requires a 7/16th wrench and socket and a minute or two of your time. Now if you should run into any problems you can always call our customer service reps at 1-855-422-7439 or feel free to shoot them an email at [email protected]. Now let's hear how the Varitune sounds on our 2014 with the valve fully closed first, and then fully open.