Flowmaster Axle Back Exhaust "Hushpower" Stainless Steel GT/GT500 2011-2012

Flowmaster: 819109
MSRP: $652.22
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$503.99
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Product Description

Flowmaster Stainless Steel "Hushpower" Axle Back Exhaust for 2011-2012 Mustang GTs and Shelby GT500s.

The new 5.0-liter Mustang for 2011 is sure to be a hot seller with tire melting performance and great handling. As always, Flowmaster is ready to further enhance the power, sound and throttle response of this already impressive pony car, through the engineering of their new Hushpower axle-back exhaust system.

This innovative system features race-proven 3" Pro Series "shorty" mufflers for an incredible sound, with a moderate sound level, and is dyno tuned to provide maximumgains in exhaust system efficiency through Flowmaster's unique patented technology.

The system is covered by Flowmaster's 3-year warranty, and is constructed with durable 409S stainless steel and finished off with 4" polished tips. The system is a true bolt-on that can be installed without any special tools, and includes easy to follow installation instructions. Utilizes factory hanger mounts/locations.

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Mustang Applications

This product will fit the following Ford Mustang years:

Product Reviews

Write a Review
best sound I heard
I never expect sound great like that . Mustafa Alnama Iraq-Basra
Mustafa Alnama August 9, 2012
Amazing exhaust note!
With the rest of the exhaust system on my 2011 GT stock, these axle-backs give it a great note, deep tone, and does not wake up the neighbors. Considering these are some of the cheapest axle-backs for the 2011+ cars, this is a great buy.
Glenn from SN March 8, 2012
GREAT SOUND AND APPEARANCE
I HAD THESE INSTALLED ON MY 2011 SHELBY GT 500. THEY ARE LIGHTER, SOUND GREAT, AND ELIMINATE THE LARGE, 'COFFEE CAN' APPEARANCE THAT COMES WITH THE STOCK SHELBY MUFFLERS.
Jim L. August 28, 2011
3 Results

Product Video

By Bill Tumas: Bill: We have a special guest in our studio today. Alex, the regional sales manager from Flowmaster, is here to tell us about the company. Alex thanks for coming.

Alex: Thank you for having me Bill. How are you doing today?

Bill: I'm doing good. We all know the two chamber Flowmaster. If you had a Fox Body back in the day you had some Flowmasters on it. But what else can you tell us about your company?

Alex: Well, Flowmaster is an aftermarket performance exhaust manufacturer, Bill, that started off on the racetracks. Ray Flugger, the founder of the company, designed mufflers for racers that were being hammered for excessive noise limits. Flowmaster presents that opportunity where you're able to reduce those dB levels without having to hurt or kill performance. Flowmaster is also one of the most significant speed parts of all time where we are actually an innovative product different from the standard that's out there.

Bill: The two chamber Flowmaster that was the original product he was selling out of a suitcase.

Alex: The 40 Series, except with some slight modifications on the case itself. Back then it was a square case and now it's more of a round oval.

Bill: The other mufflers you have here, what can you tell me about them?

Alex: Here we have a 50 Series Delta Flow to the far right, which is a three chamber design, a little more subdued, a little mellower for those that are looking for less interior resonance. In the middle here we've got a Super 40, which is a two chamber design, a little thicker, a little wider, which is set up to handle higher output applications. To the far left we've got a Super 44, which is the latest and greatest two chamber design that Flowmaster has released in recent years.

Bill: Is that still based off of the original design?

Alex: That is correct.

Bill: I know Flowmaster has a lot of kits available for the 2005 and newer Mustangs. What can you tell me about these two kits you brought with you today?

Alex: Well, Bill here we've got a Force II exhaust system from Flowmaster. It's a direct bolt on axle back 409 stainless steel with a limited lifetime warranty, fully constructed here in the U.S. It's got the rolled edge stainless steel tip with the nice four inch diameter. All of the hardware, everything you need, is included within the kit so you don't have to buy any additional accessories.

This would probably take you an hour and a half to install out of your own garage on a weekend. Very subdued, very mellow kind of tone, something designed for someone who's looking for more of a performance aspect with a little bit of rumble, nothing too wild, nothing too crazy.

Over here on the right we've got the Outlaw System. The Outlaw is very noticeable, very aggressive. It's the 'hear me from a mile away' type of sound, something I would only recommend to those who are fully aware of what they're getting. It utilizes an Outlaw race muffler, basically a muffler that was designed for race applications that are required to run mufflers without a specific dB limit. Again, I only recommend it to those that are looking for the aggressive tone from Flowmaster. It is fully built out of stainless steel, lifetime warranty as well.

Bill: The Outlaw is available for '05 and up for both the 5.0 liter and the 4.6 liter cars?

Alex: That is correct.

Bill: We know Flowmaster that has systems that fit all year Mustangs, but I heard you guys are getting in other parts of the exhaust as well?

Alex: That's right, Bill. We actually just released a full line of stainless steel headers, ceramic coated, very high end piece. They look great. It'll compliment the rest of your exhaust components. We also just released a full line of catalytic converters, both 49 state and carb certified.

Bill: If you're looking for that classic Flowmaster sound, it doesn't matter what year your car is, Flowmaster has a system that will fit your Mustang.