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

5 Reviews
Our Price

$129.99

(each)
  • Item #56243
  • MPN# 31015

  • Market Price $149.49
  • You Save 13% ($19.50)
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Product Videos
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
  • Stainless steel construction
  • Sold individually
Description
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.

Stainless Steel Construction. Manufactured using the highest quality heavy gauge Stainless 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.

Mustang Fitment: 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 Details

What's in the Box
  • (1) Muffler
Installation Info
Will it fit my Mustang?
  • Bullitt - 01
  • Foxbody - 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93
  • Mach 1 - 03, 04
  • V6 - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04
  • Cobra - 94, 95, 96, 97, 98
  • GT - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04

Most Helpful Reviews Read All Reviews

Overall Rating 5/5 Write a Review
5/5
Very happy with BBK Varitune mufflers!

I had my initial review deleted because after about a 2 week break in period I have been much more impressed with these mufflers. At first they didn't seem loud enough but the volume and tone improved

Read More
Helpful (2) (1)

5/5
Great muffler. Modified to fit 2007 v6

Bought this muffler three weeks ago for my 2007 mustang. I knew there would be a little modification to allow the exhaust pipe to fit properly. Took roughly an hour to cut weld and mount this new muffler. I

Read More
Helpful (1) (0)

Videos

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 View Full Transcript

Customer Photos

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Q & A Ask a Question

Anyone have the measurements for this muffler? I currently have a flowmaster American thunder catback with 40 series muffs. Will these bbk varitunes fit into this system or will it need cutting and welding to fit in?

cruizer Year: 2003 Model: GT

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Reviews (5) Write a Review

  • 5 Stars 1.0 100%
  • 4 Stars 0 0%
  • 3 Stars 0 0%
  • 2 Stars 0 0%
  • 1 Stars 0 0%
5.0

out of 5 stars

5 Customers Recommend this Product

Installation Time:Full Day

Installation Cost:$100-$250

  • Loudness / Volume: 4.2 4.2/5
  • Exhaust Note: 4.8 4.8/5
  • Fit & Finish: 4.2 4.2/5
  • Bang For Your Buck: 5 5/5
Filter By Sort By
  • 5/5 Yes, I recommend this product

    October 21, 2014

    Best muffler you can buy!!!!

    With the decision of choosing the BBK Varitune Mufflers you are able to adjust the volume of your exhaust very quickly and with no hassle. These mufflers completely change the sound and even the overall feeling when driving your vehicle. Throughout the break in period of the mufflers, the sound continually got deeper and sounded more like a muscle car. I purchased these mufflers and couldn't be more blown away with the outcome. If you want to hear the true power of your engine and gain some horsepower while your at it, buy these mufflers and you will be very pleased with the result.

    andrewbball21

    Year: 2003 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2 Utica, NY, USA

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    September 26, 2014

    Great muffler. Modified to fit 2007 v6

    Bought this muffler three weeks ago for my 2007 mustang. I knew there would be a little modification to allow the exhaust pipe to fit properly. Took roughly an hour to cut weld and mount this new muffler. I left the first setting the quietest setting on for a fully week and let me tell you. It did not sound like a quiet setting! The cabin drone was not too bad more than stock but still quiet enough to not wear ear muffs. Within two days I was receiving complements and being asked questions about it. Massive head turner. After the first week I opened the exhaust up and was still quite impressed. There is a large difference between the sounds from clods to open. While it was open it still wasn't too loud inside but outside it was extremely loud. My friends hear me coming down the road. And from a few roads over. Overall extremely impressed with this product. Eventually will get a true dual and first thing will be to get another one of these and pop it on. No regrets.

    Moberdorf302

    Year: 2007 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 2 Newark, NY 14513, USA

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    November 16, 2013

    Very happy with BBK Varitune mufflers!

    I had my initial review deleted because after about a 2 week break in period I have been much more impressed with these mufflers. At first they didn't seem loud enough but the volume and tone improved a bit as they broke in. The mufflers are about as loud as stock when the valves are closed; with them open, they are a little louder than the Magnaflow Street mufflers I previously had. I do a lot of highway driving and wanted a system that wouldn't have annoying drone, so I'll mention that there is a light drone around 2k rpm (valves open), but it isn't loud enough to be a bother. The exhaust sounds great when you get on it, but I do wish it was a little louder still with the valves open. Every couple weeks, I close the valves for a few days and then when I open them back up its like having new mufflers again. I would definitely recommend these for anyone who was to give their Mustang a great sound without being obnoxiously loud. These may be the perfect daily driver exhaust.

    ab01gt

    Year: 2001 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2

    Helpful (2) (1)

  • 5/5 Yes, I recommend this product

    October 29, 2013

    Amazing Mufflers!!!

    These are some of the coolest mufflers I have ever had. The fact that you can change the exhaust from a three chamber to a one chamber on the fly is great. There is a slight volume change when you switch to a one chamber. Has a slight more popping sound as a one chamber as well. Bolts don't get in the way of rear axle when set as a one chamber Look great under the car as well!! Great product by BBK!!

    Foxy88

    Year: 1988 Model: Other Driving Style: Daily Driver 'Stangs I have owned: 2 Littleton, CO, USA

    Helpful (1) (1)

  • 5/5 Yes, I recommend this product

    July 18, 2014

    Bbk exhaust

    It will defiantly bring out the sound ur looking for even before the 2 week mark

    Stretch2248

    Year: 1998 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 1 Hamilton, ON, Canada

    Helpful (0) (1)

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