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axle-back

Flowmaster 817799 - American Thunder Axle Back Exhaust System

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$1,199.95

$1,333.95

You save: $134.00 (10%) off MSRP

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This part fits

  1. 2019 Ford Mustang GT 5.0L V8 cid:302 cc:4951
  2. 2019 Ford Mustang GT Premium 5.0L V8 cid:302 cc:4951
  3. 2018 Ford Mustang GT 5.0L V8 cid:302 cc:4951
  4. 2018 Ford Mustang GT Premium 5.0L V8 cid:302 cc:4951
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About this product

Part #: 817799

Flowmaster's American Thunder Axle-back exhaust system for the 2018 and 2019 Ford Mustang GT is perfect for the person looking for a moderate to aggressive sound level both inside and outside of the car, with all of the performance benefits that you would expect from Flowmaster. This bolt-on DOR (Dual Out Rear) emissions-legal system for cars with the 5.0L engine features a pair of Outlaw Series mufflers and dual mandrel bent 3.00 inch tailpipes for maximum performance. The mufflers include functional exhaust valves to work with the OE actuator motors to select between sound levels.The system is built out of 409S stainless steel and utilizes Quad 4.00 inch polished stainless steel tips with the Flowmaster logo embossed in them. This system fits vehicles equipped with Active Performance Exhaust Option. The exhaust system is covered by Flowmaster's Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation. Note: This system fits hardtops and convertibles.

More Details

Exhaust SeriesAmerican Thunder
Exhaust TypeAxle-Back
Exit PositionDual Out Rear
Heat Shield AttachedNo
Inlet Inside Diameter3.000 in.
Mount TypeUses Factory Hangers
Muffler Body Material409S Stainless Steel
Muffler Body ShapeOval
Muffler ColorBlack
Muffler Count2
Muffler FinishPainted
Muffler Inlet Diameter3.000 in.
Muffler Inlet LocationSide
Muffler Outlet Diameter3.000 in.
Muffler Outlet LocationDual
Muffler Overall Length49.500 in.
Muffler Series60 Series
Single or DualDual
Sound LevelModerate/Aggressive
System TypeAxle Back
Tail Pipe Diameter3.000 in.
Tip Diameter4.000 in.
Tip Edge StyleCut
Tip FinishPolished
Tip Length5.250 in.
Tip LogoEmbossed
Tip Material304 Stainless Steel
Tip TypeDouble Wall
Tubing Diameter3.000 in.
Tubing Material409S Stainless Steel
Additional Documents
  1. Certificate of Originpdf
  2. Warrantypdf

See what our community says about flowmaster products

Aaron Welliver

47

Aaron Welliver
2012 Ford Mustang
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?
The mufflers were pre-installed when I bought the car.
Is this your first time buying from this brand? Did you consider other brands?
Pre-Installed
Was it easy to install? Any installation tips that will help others?
Pre-Installed
View on Aaron'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 like the sound of Flowmaster and I like the new exhaust look
Is this your first time buying from this brand? Did you consider other brands?
no all of my other Mustangs had Flowmasters installled
View on Seth'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?
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
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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