BBK Varitune Axle-Back Exhaust - Aluminized (05-10 GT)

BBK Varitune Axle-Back Exhaust - Aluminized (05-10 GT)
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TRANSCRIPT

Hey I’m Justin with AmericanMuscle.com, here with quite possibly one of the most exciting new products to come along in some time, I’m talking about BBK’s Varitune fully tunable axleback exhaust system, fitting the 2005-2010 Mustang GT. If you haven’t checked out BBK’s complete lineup available for your Mustang, just click the link below to head back to our site, and see for yourself. Let’s break these mufflers down a little further, the Varitune as the name suggests is a fully tunable muffler, allowing you to adjust not only the sound but also the performance. How does it all work? Well, BBK was kind enough to send along the internals of one of these mufflers, to show you how it all goes down. By adjusting this screw on the outside of the muffler, you can change from a 3 chambered muffler to a single chambered muffler in a matter of minutes. With the power valve closed like it is now we are essentially running a 3 chambered muffler, which is going to keep the sound levels down considerably. By turning this screw and opening the power valve complete, you are transforming that 3 chambered muffler into a single chambered muffler, allowing the exhaust gasses to bypass those first two chambers complete, before being dumped in the third chamber and exiting out the tip here. During our actual testing, not only did I notice the tone to be slightly louder with the valve open, but it also took on a more aggressive tone. What I mean by that is it had the tendency to grumble and pop a little bit more coming down off the revs. BBK does offer an aluminized steel version, in addition to a full stainless version of the Varitune, with a slight difference in price between the two. In addition to that the kit does feature 3” mandrel bent tubing, in addition to these 4” brightly polished tips. There are 4” black tips available from a dropdown menu, if you’d just like to switch up the look a little bit. Installing the Varitune is just like installing any other axle back exhaust, it can easily be done in about an hour’s time using basic hand tools. Adjusting that sound tube is even easier and can be done using a wrench in about a minute of your time. If you have any questions about the install, or about the Varitunes in general, get in touch with one of our customer service reps, you can email them at support@AmericanMuscle.com, or give them a call at 855-422-7439, and if you haven’t done so already, go ahead and subscribe to our YouTube channel by clicking the link below, or up in the corner. We have hundreds of exhaust sound clips that you can hear, that might help you with your purchase. Now let’s hear how the Varitune sounds on our GT with the valve fully closed and fully open.
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About BBK

BBK Mustang Performance Parts
Since 1988 BBK has been the leader in aftermarket Mustang performance parts and accessories and has grown to a top brand in Fuel Injection performance with three facilities totaling over 150,000ft where they design and build there vast product line here in the USA. Starting with products for the then new EFI Mustang back in 1988, BBK has along the way introduced many firsts to the Mustang aftermarket such as throttle bodies, cold air intakes, equal-length headers and there famous adjustable clutch quadrant kits. With over 500 product applications including dozens of products for the hot new 2011 Mustang V6 & 5.0L models BBK always delivers the best OEM quality, dyno proven performance upgrades for your favorite Mustang.
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OUR PRICE$439.99
Market Price $489.99You Save 10% ($50.00)
Item # 56238
Ships the same business day
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Product Features

  • AmericanMuscle Exclusive
  • BBK Varitune Axle-Back with "Adjustable Power Valve"
  • Change from a three to one chamber exhaust for more power and sound
  • 8-10 decibel range difference
  • Aluminized steel construction
  • 4" polished 304 stainless steel tips
  • Direct bolt-on, no cutting or welding required
  • Fits 2005-2010 GT and Bullitt Mustangs
Adjustable Sound. This BBK Mustang Axle-Back Exhaust system features BBK's patented tunable Varitune performance mufflers that allow you to change from a mellow three chamber exhaust sound to a rich throaty straight-through exhaust note with just a twist of a wrench, for a 8 to 10 decibel sound level difference!

How It Works. BBK Varitune performance mufflers utilize an internal "Adjustable Power Valve". When in the closed position the valve blocks the exhaust flow forcing it through all three chambers of the muffler for a classic mellow sound. When in the open position the valve "uncorks" the exhaust flow allowing it to take the path of lease resistance to act more like a straight-through muffler for a rich throaty exhaust note. This unique design is perfect for personalizing the power and sound levels of your Mustang to suit your own specific needs.

Aluminized Steel Construction.
Constructed from highest quality Aluminized Steel available, this BBK Performance Axle-Back exhaust system features Varitune chambered mufflers that end with 4" polished 304 stainless tips for impressive looks and sound. The tips exit in the stock locations so no modifications are required to the rear bumper cover.

Application. This BBK Varitune Axle-Back Exhaust is designed as a direct fit bolt-on upgrade for the 2005-2010 GT and Bullitt Mustangs equipped with the 4.6L 24V SOHC Modular V8 Engine.

Installation Time:

(approx) 1 Hour

Difficulty Level:

Advanced mechanical skills required.

What's in the box?

  • (1) Passenger side muffler assembly
  • (1) Driver side muffler assembly

What's in the box?

  • (1) Passenger side muffler assembly
  • (1) Driver side muffler assembly
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Fitment:
  • GT 05, 06, 07, 08, 09, 10
  • Bullitt 08, 09

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