BBK Varitune Muffler - Aluminized 2.5 in. (79-04 All, Excludes 99-04 Cobra)

BBK Varitune Muffler - Aluminized 2.5 in. (79-04 All, Excludes 99-04 Cobra)
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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 support@americanmuscle.com. 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.
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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$109.99(each)
Market Price $124.99You Save 12% ($15.00)
Item # 56242
(4.0/5)2 Reviews
Ships the same business day
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Product Features

  • BBK Varitune muffler with "Adjustable Power Valve"
  • Change from a three to one chamber exhaust for more power and sound
  • 8-10 decibel range difference
  • Offset inlet and outlet design
  • 2.5" inlet/outlet diameter
  • Aluminized steel construction
  • Sold individually
Adjustable Sound. BBK's patented tunable Varitune performance mufflers 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. Manufactured using the highest quality heavy gauge Aluminized Steel available, BBK Performance utilizes both robotic and hand welding to ensure the quality and durability of each of their mufflers.

Application. This BBK Varitune Muffler features a 2.5" inlet and outlet diameter in an offset configuration making it the perfect muffler for 1979 to 2004 Mustangs, including the LX, V6, GT, Bullitt, Mach 1 and 1994-1998 SVT Cobra models. Excludes 1999-2004 SVT Cobras with IRS.

Installation Time:

(approx) 2 Hours

Difficulty Level:

Advanced mechanical skills required.

What's in the box?

  • (1) Muffler

What's in the box?

  • (1) Muffler
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Fitment:
  • V6 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04
  • GT 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04
  • Cobra 94, 95, 96, 97, 98
  • Mach 1 03, 04
  • Bullitt 01
  • Foxbody 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93

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