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SLP Power-Flo Axle-Back Exhaust (05-10 V6)

49 Reviews
Our Price


  • Item #23037
  • MPN# 31021

  • Market Price $249.95
  • You Save 4% ($10.00)
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Customer Photos
  • Aggressive V8 Sound.
  • PowerFloâ„¢ Muffler with Polished Stainless Tip.
  • Durable Stainless Steel Construction.
  • Lifetime Warranty.
  • Fits 2005-2010 V6 Mustangs.

Aggressive exhaust note. SLP's Axle-Back with it's performance Power-Flo muffler will give your 2005-2010 V6 pony a more aggressive exhaust sound that compares to a V8 Mustang.

Performance. This Axle-Back system from SLP features the PowerFlo muffler that uses a "straight-through" design and ceramic-wrapped perforated core for free flowing exhaust performance. The muffler ends in a 3.5" rolled edge slash cut polished stainless tip, that exits in the stock location for great looks and improved performance.

Lifetime Warranty. The SLP Power-Flo Axle-Back exhaust is Covered by SLP's Performance Guarantee and limited lifetime warranty.

Fitment. This Axle-Back exhaust system will fit the 2005-2010 V6 Mustangs for great looks and great sound.

Technical Note: Americanmuscle recommends adding the 2005+ Mustang 304 Stainless Steel Exhaust Hanger Kit from the drop down option above, to provide more strength, stability and a cleaner installed appearance. If you have a 2007 Mustang you may need the kit for correct installation.

Fitment: 2005 2006 2007 2008 2009 2010 Details

What's in the Box
  • (1) Muffler assembly/li>
  • (1) Curved Pipe
  • (1) Tip
  • (3) Clamps
Installation Info
Tech Specs
Axle-Back Exhaust Specifications
Piping Material: 409 Stainless Steel Tip Material : Polished 304 Stainless Steel
Piping Size: 2.5" Tip Size: 3.5"
Muffler Type: Straight-through Fitment: 2005+ V6 Mustangs
Will it fit my Mustang?
  • V6 - 05, 06, 07, 08, 09, 10

Most Helpful Reviews

Mean sound

I love this exhaust, didn't think my v6 could sound as good as it does with the SLP, and the install was simple with the 3 parts it made it a breeze, this is worth every penny!

Helpful (2)

Excellent Choice

I'm absolutely amazed at the sound quality and product finish. If your looking for new axle-back look no further. I researched all the axle backs and finally decided on the SLP Power Flo. 6 months of comparing ...

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Helpful (1)

Overall Rating 4.7 out of 5 stars
Read All 49 Reviews

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4 Questions / 7 Answers

Ask a Question

Do you sell one for driver side? I wanna order this mod for now but I would like to convert to Dual later on. Just wondering if you guys sell one for the driver side.


  • Unfortunately, we only sell the Power-Flo for the passenger single exhaust. I'd suggest contacting SLP directly to see what they might be able to do for you regarding a driver's side pipe when you convert to duals.


    Good Answer (2) (1)

Show 1 more answer Question Resolved

Hp increase? does this increase hp? if so how much and why?


  • 5 to 8 HP depending on your modifications. It will be louder then your stock muffler and allow more exhaust gas to exit faster and you'll notice a difference. However If your looking for more horsepower and torque and plan for future modifications i.e.: CAI & Tuner, headers. You'll benefit more from adding a true dual exhaust system such as a Ford Racing True Dual Exhaust (05-09 V6).


    Good Answer (1) (0)

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how does it sound idle? i want my 08 v6 to sound more aggressive.


  • definitely more aggressive sound....i have a pair if these on my '05 gt and it sounds more like a "muscle"'ll love'em.....easy install too....i got the tips powder coated black....looks bad


    Good Answer (0) (0)

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How is the drone while cruising at freeway speeds?


  • i have a set of these on my '05 gt and there is NO drone at any speeds, just that muscle car sound....i love mine !!...there's basically no muffler (it's a muffler with a straight thru rumble) and it's legal......just get it !!


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Customer Reviews (49) Write a Review

Overall Rating 4.7

out of 5 stars

Installation Time:Afternoon

Installation Cost:0-$100

  • Loudness / Volume 4.633333 4.6
  • Exhaust Note 4.566667 4.6
  • Fit & Finish 4.5 4.5
  • Bang For Your Buck 4.6 4.6

  • 5/5

    August 04, 2016

    Great and loud

    Only complaint is its almost to loud when your just driving around its a great exhuast for the money if you want loud and only want a axleback get this ! The back fire is intense!


    Year: 2006 Submodel: V6

    Helpful (1) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    May 23, 2016

    Excellent Choice

    I'm absolutely amazed at the sound quality and product finish. If your looking for new axle-back look no further. I researched all the axle backs and finally decided on the SLP Power Flo. 6 months of comparing Flowmasters, Magnaflows, Pypes and SLP led me to here. The videos on YouTube don't do the power flo justice. Looking forward to more purchase from AM now. It's also relatively easy to install yourself.


    Year: 2007 Submodel: V6

    Helpful (1) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    January 13, 2015

    LOVE IT!!

    As a high school student, we all want to outdo our friends to see who can have the coolest cars and what not. So after months of consideration, I recently purchased this and had it shop installed. My stock exhaust was welded on from the last owner for some reason. But I absolutely love the sound and look of this on my 2009 V6 Mustang! It has a noticeably louder, deeper idle sound and when you really gun it, that's when you notice the biggest difference. This'll make your V6 roar. I've asked all of my friends for their input and they say they love it and it sounds "sexy!" I STRONGLY recommend this for any owner looking to beef up their V6's sound!


    Year: 2009 Submodel: V6 WaKeeney, KS 67672, USA

    Helpful (1) (0)

  • 3/5

    Installation Time: Less than 1 Hour

    May 23, 2014

    Recommend with some reservation

    I had a Pypes muffler on the vehicle and was looking for a little louder sound. The SLP was easy to install but it sounds nearly identical to the Pypes. I am a bit disappointed. Installation took about 45 minutes.


    Year: 2009 Submodel: V6 Twinsburg, OH, USA

    Helpful (1) (0)

  • 5/5

    March 25, 2011

    Mean sound

    I love this exhaust, didn't think my v6 could sound as good as it does with the SLP, and the install was simple with the 3 parts it made it a breeze, this is worth every penny!


    Year: 2006 Submodel: V6

    Helpful (2) (0)

  • 5/5

    October 17, 2009


    I am in love with this exhaust. It makes my 09 v6 sound like a monster. It roars at takeoff and yet sounds great at idle. I love it. Recomended for any v6 owner!

    Ryan B.

    Year: 2009 Submodel: V6

    Helpful (12) (0)

  • 5/5

    September 28, 2010

    Kick ass!!

    I had a flowmaster on my 2007 4.0 and it was loud and it had great performance, but it sounded more like a tuner. I bought this product at a great price and I can feel a major difference in the power. It has more of an aggressive, mean sound to it. Super great!! It took maybe twenty minutes to install.

    Shawn Louthian

    Year: 2007

    Helpful (10) (0)

  • 5/5

    May 03, 2009


    This is a really nice aftermarket muffler, It sounds awesome when you start the car and has a great rumble to it and take off sound is much better than stock, intalled my self easy.

    Jeremy Smith

    Helpful (7) (0)

  • 5/5

    October 26, 2010


    I was definately not expecting this exhaust to sound as nice as it does. When i first started my stang after a quick installation, i had a big smile. Not only is this exhaust loud, but it sounds great. My friend has an infiniti g35 and now my car sounds better and louder than his. I definately did not expect this much from an inexpensive axle-back exhaust!!!


    Helpful (5) (0)

  • 5/5

    June 17, 2009

    Awesome exhaust

    This SLP axel-back exhaust absolutely blew me away. The start up, idle, take off, and cruising tones all sound awesome. Aggressive V8 Sound was very right! Did the install myself no problem. I recommend this to any V6 owner


    Helpful (5) (0)

  • 5/5

    January 26, 2010


    This exhaust is absolutely amazing. It makes the car sound a thousand time better. Easy install in less than a hour. Definitely worth the money and a must have for any V6 owner.


    Helpful (9) (3)

  • 5/5

    April 26, 2009

    sweet exhaust

    Very Good exhaust, this SLP muffler sounds much better than stock muffler, its louder when you start up the car and sounds awesome, and has great take off,and cruising sound, did the install my self. I\'m really glad I chose this muffler.

    Jeremy S. Vanc. WA.

    Helpful (3) (0)

  • 5/5

    May 24, 2010

    Super loud

    This product is super amazing! My buddy brought a Mustang GT over and mine was just as loud if not louder!! And the great part is its loud when your going like 60-100 unlike most cars. its great buy buy buy. (i had a professional install it)


    Helpful (8) (4)

  • 5/5

    Installation Time: Afternoon

    November 10, 2012

    Great muffler....just one mini problem.

    Well. I recently bought this for my 2010 V6 to give it a better sound due to the stock muffler is restrictive to all ends of the earth because it wouldn't roar at 5K, it would hiss. So I got this to make it roar. And it does. But here is a tip 2010 owners!! It doesn't fit out the back due to the rear end so your gonna need to go buy a 2.5"-2.5" exhaust exstension and another 2.5" exhaust clamp due to it doesn't reach the back of the car, and this way your exhaust tip can stick out. But...if you REALLY want loud sound, don't put the tip on run it. It sounds BEAST. It was louder than my friends dual exhaust Pontiac GTO, and I mean LOUD. I was getting such a rumble I could hear it from 1.5k rpm thru the whole rpm band inside the car! So this is super loud being the fact it practically a strait pipe so I TOTALLY reccomnd this to anyone who wants some actually growl and roar to there V6


    Year: 2010 Submodel: V6 San Diego, CA, USA

    Helpful (2) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    October 24, 2015

    SLP Power Flo

    OMG she screams now! WAY louder than the silly dual exhaust charger sitting across the street. THIS EXHAUST IS BEAST. After a few weeks maybe a month of digging and listening to sound clips I decided on this and i am WAY more than happy with my decision! Way to go AM for another great and amazing product. The shipping was fast as well and I was pretty surprised and the amazing job they did packing the thing. Thanks again -Mustang_Blackwidow


    Year: 2007 Submodel: V6 Redondo Beach CA

    Helpful (1) (0)

  • 5/5

    Installation Time: Afternoon

    April 20, 2012

    SLP Power-Flo sounds good

    Very satisfied overall. Had to put a 4 inch extension(about $4) on between the muffler and chrome tip to get a satisfactory fit on my 2010 Mustang.


    Year: 2010 Submodel: V6 Wisconsin

    Helpful (1) (0)

  • 2/5

    December 25, 2009

    don't believe what you read

    i have a 2010 mustang, i got the axle back as well as the kit to put it on and had it professionally installed. i am embarrassed to drive my car. im going to have this euro-sounding trash taken off and sell it. it sounds nothing like a mustang should. i advise not to buy this product for a mustang, it suits umm.. maybe a honda

    vanessa, san antonio tx

    Year: 2010

    Helpful (16) (14)

  • 3/5

    Installation Time: Less than 1 Hour

    May 22, 2012

    Makes a great sound for a v6 but

    Makes your v6 sound like a beast but the loudness gets irritating me after a while. Makes a great idle sound and sounds amazing when your accelerating if you want to make a lot of noise. Though its a cool product I will not keep it installed on my car.


    Year: 2006 Submodel: V6 Ottawa, ON, Canada

    Helpful (1) (1)

  • 5/5

    August 19, 2016


    I absolutely love this exhaust, such a nice sounds! Finally can hammer down and have some sound. Best purchase I've made or at least the most noticeable!


    Year: 2005 Submodel: V6

    Helpful (0) (1)

  • 4/5

    July 06, 2016

    Great exhaust

    Sounds great. A lot louder the stock muffler, great buy


    Year: 2006 Submodel: V6

    Helpful (0) (1)

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