axle-back

Flowmaster 817588 - American Thunder Axle Back Exhaust System

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$498.95

$554.95

You save: $56.00 (10%) off MSRP

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Check to see if this fits your vehicle

This part fits

  1. 2014 Ford Mustang GT 5.0L V8 cid:302 cc:4951
  2. 2013 Ford Mustang GT 5.0L V8 cid:302 cc:4951
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About this product

Part #: 817588

American Thunder exhaust systems deliver the aggressive sounds you want, as well as the performance gains you demand. This T409 stainless steel American Thunder Axle-back for the 2013 to 2014 Mustang GT features specially modified Super 44 series mufflers with polished 4.00 in. stainless tips and is a direct bolt on for the restyled Mustang. A lifetime limited warranty provides assurance that this American made exhaust will deliver that famous Flowmaster sound for many years to come.

More Details

Exhaust SeriesAmerican Thunder
Exhaust TypeDual
Exit PositionDual Rear
Exit StyleStraight
Heat Shield AttachedNo
Inlet Diameter2.750 in.
Inlet Inside Diameter3.000 in.
MaterialStainless Steel
Muffler Count2
Muffler Part NumberKit Only
Muffler SeriesSuper 44 Series
Outlet Diameter3.000 in.
Outlet Outside Diameter4.000 in.
Single or DualDual
Sound LevelAggressive
System TypeAxle Back
Tail Pipe Diameter3.000 in.
Tip Diameter4.000 in.
Tip Quantity2
TitleFlowmaster 817588 Axle-back System 409S - Dual Rear Exit - American Thunder - Aggressive Sound
Tubing Diameter3.000 in.
Additional Documents
  1. Certificate of Originpdf
  2. Installation Instructionspdf
  3. Warrantypdf

See what our community says about flowmaster products

product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Sound of the system, quality of the flowmaster product and their name speaks for itself.
Is this your first time buying from this brand? Did you consider other brands?
No I have used flowmater before on other rides.
Was it easy to install? Any installation tips that will help others?
Relatively easy to install with the proper tool.
Once you've had a chance to use the product, did it meet your expectations?
Good purchase, very pleased
Any additional comments?
Has a bit of a drone but easy to drown out with the stereo.
View on James's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
I love the way they sound and i hope the power is there i have had them for so long maybe one day ill get new stuff
Is this your first time buying from this brand? Did you consider other brands?
nope they were a find in a srap yard
Was it easy to install? Any installation tips that will help others?
nope
Once you've had a chance to use the product, did it meet your expectations?
yup
Any additional comments?
nope
View on Joseph's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
I was looking for a certain sound, and this delivered!
Is this your first time buying from this brand? Did you consider other brands?
Yes, first time.
View on Logan's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Wanted a great sound from the mild 355 motor and were affordable for the custom exhaust I built.
Is this your first time buying from this brand? Did you consider other brands?
yes
View on Alex's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
was already on car but is alright for what it is
Is this your first time buying from this brand? Did you consider other brands?
no
Was it easy to install? Any installation tips that will help others?
Was welded on when got just take exhaust to shops they can weld better than you.
Once you've had a chance to use the product, did it meet your expectations?
Its fine but I wish it was a bit louder
Any additional comments?
buy corsa
View on Chance's build
California prop 65 warningWARNING: Cancer and Reproductive Harm www.p65warnings.cs.gov

*Some manufacturer restrictions apply.

About Flowmaster

Manufacturer of performance exhaust systems, mufflers, cold air intakes, turbo boost modules, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 5 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels.

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Based in California with 3 warehouses across the country, we’re sending out shipments everyday of the week, even Saturdays. Because your next mod shouldn’t have to wait.

+ FREE GROUND SHIPPING ON U.S. ORDERS OVER $99
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