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BBK Varitune Axle-Back Exhaust - Aluminized (11-14 GT)

7 Reviews
Our Price

$469.99

  • Item #56240
  • MPN# 4101

  • Market Price $540.49
  • You Save 13% ($70.50)
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Product Videos Customer Photos
Features
  • 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 2011-2014 GT Mustangs
Description
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 2011-2014 GT Mustangs equipped with the 5.0L 32V DOHC V8 Coyote Engine.

Mustang Fitment: 2011 2012 2013 2014 Details

What's in the Box
  • (1) Passenger side muffler assembly
  • (1) Driver side muffler assembly
Installation Info
Will it fit my Mustang?
  • GT - 11, 12, 13, 14

Most Helpful Reviews Read All Reviews

Overall Rating 4.7/5 Write a Review
5/5
One of a kind

This is a great step up from the stock exhaust. The tone is excellent with the exhaust wide open and even the wife likes it. It is enough to set off car alarms in parking garages without being obnoxiously

Read More
Helpful (1) (0)

5/5
Sounds great

Just what I was looking for.I wanted to be able to adjust the sound in case it was too loud.For now I have it wide open,sounds great when excelerating and I get some nice popping when you get off the gas.If

Read More
Helpful (1) (0)

Videos

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 View Full Transcript

Customer Photos (4) View All Customer Photos

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Q & A (1 Questions, 3 Answers) Ask a Question

life expectancy of this vs the stainless steel via rust/corrosion? Trying to decide between the BBK Varitune exhaust, aluminized vs stainless for longevity. How durable are they, comparably?

Shorin Year: 2013 Model: GT

Question Resolved
Good Question (0) (0)
  • Stainless steel often looks better and can be polished (depending on grade) Their are two grades of stainless, 304 and 409. 304 is much stronger, will last much longer and can be polished. Stainless steel is very resistant to corrosion and will last longer than aluminized steel, therefore it is much easier to warranty.

    Helpful (0) (0)

    CalifSpec2 Year: 2013 Model: GT

Show 2 more answers

Reviews (7) Write a Review

  • 5 Stars .86 86%
  • 4 Stars 0 0%
  • 3 Stars .14 14%
  • 2 Stars 0 0%
  • 1 Stars 0 0%
4.7

out of 5 stars

5 Customers Recommend this Product

Installation Time:Afternoon

Installation Cost:0-$100

  • Loudness / Volume: 4.142857 4.1/5
  • Exhaust Note: 4.428571 4.4/5
  • Fit & Finish: 4.428571 4.4/5
  • Bang For Your Buck: 4.428571 4.4/5
Filter By Sort By
  • 5/5 Yes, I recommend this product

    November 28, 2014

    Amazing Sounds and Power

    Better than advertised. I did a ton of research on several other muffler upgrades and chose this one based on the description and videos I watched. One of the advantages to this system is the ability to turn the volume up or down just by screwing the baffle in or out. I am not really mechanical, so I had them installed by my local dealer and it took no more than 30-45 minutes. As the name says, "varitune", the exhaust note is perfect with a great balance of low end grunt, and a high pitched scream when you get up in the rpms. I have gotten a ton of complements on them and they turn lots of heads as I go through the gears down the street. When the baffle is fully open, I experience an increase in power and sound along with a tremendous amount of pops and backfires when decelerating which was mentioned in the video. Great job BBK!!!

    TheMachine

    Year: 2014 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1 Chicago, IL, USA

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    July 04, 2014

    Pretty Cool!

    I chose these mufflers simply because you can control how much baffle you want. We use our Stang to travel in and the wife isn't thrilled with loud. A crescent wrench and 7/16 wrench changes it quick! It's throaty and loud when wide open but discreet baffled. My throttle response is much better as well. None of the drone or rasp that I've heard with other mufflers. I haven't changed anything else on the car yet and I'm very glad this was my first choice! I'm hoping it'll wake the neighbors after headers, X pipe and mid pipes! While still simply adjusting two bolts to quiet it down when needed!

    Txfishermn

    Year: 2011 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2 Houston, TX, USA

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    April 29, 2014

    Sounds great

    Just what I was looking for.I wanted to be able to adjust the sound in case it was too loud.For now I have it wide open,sounds great when excelerating and I get some nice popping when you get off the gas.If I ever want to tone it down just turn the bolt.

    RealEstateDean

    Year: 2014 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1 Reading, PA, USA

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    March 15, 2014

    One of a kind

    This is a great step up from the stock exhaust. The tone is excellent with the exhaust wide open and even the wife likes it. It is enough to set off car alarms in parking garages without being obnoxiously loud. In 6th gear cruising on the highway you can go into "silent mode", keeping throttle between accel & decel, it goes quiet for no-drone cruising. Already had multiple compliments on the exhaust note @ gas stations. Best part of all, you can tone it down if you want to. Simply the only exhaust choice for me. This will be perfect when I get headers too, as if it is too loud I can just turn the screw until it is the perfect volume. Love it!

    SpeedyCPU

    Year: 2011 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 3 Plano, TX, USA

    Helpful (1) (0)

  • 3/5 No, I do not recommend this product

    February 20, 2014

    2014 mustang 5.0

    After about a month of looking through the sound clips, youtube videos, and reviews. I do not understand how this got close too the stars it's been rated. The installation goes both ways. Factory is horribly designed, which maybe made like everything else too make people bring it too the dealership too have worked on. The install on aftermarket was even worst. Did not fit right at all. Alot of time unbolting, repositioning, and adjusting back and forth too get one thing too fit while another end messed up again. I'd say 2.5hrs too install and I'm very mechanical inclined. The exit pipe for the tips too go on were both bent. The kit should have came with new clamps too replace factory. I understand that the tips could not have been on prior too installation of exhaust due too the tight fitment. But the clamps could of been thinner. This causes the bolt on the clamps too be very difficult too get a wrench in. After install I decided too have baffle wide open because I would want too leave open unless I had a long road trip. When I started the engine I had too make sure they were fully open. I was not impressed at all. They are not loud, can't hear them in the cab. I hear the sound tube but no exhaust, windows down or up. I closed them just too experiment, still about the same tone, when you down shift you still don't hear any popping like was explained on AM video for varitune. If the install wasn't so aggravating I would have taken them off immediately and shipped them back. Idk how they make it sound like it does in the video, or if it's a portable mic installed on the back of the mustang but I feel like it's a factory exhaust with just name brand stamped on it. Back too the finish. After about 45mins of pushing and pulling. I could not get the tips away from my painted bumper. I guess the best way too explain this. ($120 installed, magna flows were louder on my 1.3 rotory)

    stangrippin

    Year: 2014 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 3 Mont Belvieu, TX, USA

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    July 18, 2014

    Awesome Axleback system

    This is a great product if you aren't sure which system to get. The sound is perfect, it's not obnoxious at higher rpms. It's not the best fit but it only took about an hour to put on. It's not exactly how I expected it to sound but it grew on me. I highly recommend this system.

    Ferg131

    Year: 2014 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2 Memphis, TN, USA

    Helpful (0) (1)

  • 5/5

    June 25, 2014

    rumble young man rumble!

    The varitune axle back on my mustang gt is like heaven on earth. Starting up my mustang and hearing the rumble of this muffler just puts a smile on my face every time. This product will definitely add the after market "grow" that will turn heads. Its also very easy to install.

    Wallo

    Year: 2014 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1 Virginia Beach, VA, USA

    Helpful (0) (1)

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