axle-back

Flowmaster 817807 - American Thunder Axle Back Exhaust System

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$725.95

$807.00

You save: $81.05 (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
Authorized Dealer

About this product

Part #: 817807

Flowmaster's American Thunder Axle-back exhaust system for the 2018 and 2019 Ford Mustang GT with the 5.0L engine is perfect for the person looking for an aggressive exterior sound level with all of the performance benefits that you would expect from Flowmaster. This bolt-on 409S stainless steel system features single 3.00 inch mandrel-bent tubing and two Super 44 series mufflers for maximum power and exterior sound quality, but with a moderate and pleasant interior tone at cruising speeds. Other features include quad 4.00 inch polished tips. This system includes all necessary parts, hardware and instructions for an easy installation. NOTE: This kit will not fit vehicles with the Active Performance Exhaust option.

More Details

Catalytic Converter IncludedNo
Exhaust SeriesAmerican Thunder
Exhaust TypeAxle-Back
Exit PositionDual Out Rear
Inlet Inside Diameter3.000 in.
Mount TypeUses Factory Hangers
Muffler Body Length13.000 in.
Muffler Body Material409S Stainless Steel
Muffler Body ShapeOval
Muffler ColorBlack
Muffler Count2
Muffler FinishPainted
Muffler Inlet Diameter2.500 in.
Muffler Inlet LocationOffset
Muffler Outlet Diameter3.000 in.
Muffler Outlet LocationDual Outlet
Muffler Overall Length51.500 in.
Muffler Part NumberKit Only
Muffler SeriesSuper 44
Muffler TypeReflection
Single or DualDual
Sound LevelModerate/Aggressive
Tip Diameter4.000 in.
Tip Length5.250 in.
Tip LogoEmbossed
Tip Material304 Stainless Steel
Tip Quantity4
Tip ShapeRound
Tip TypeDouble Wall
Tubing Material409S Stainless Steel
Additional Documents
  1. Certificate of Originpdf
  2. 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?
a mix of price and a snapped midpipe
Is this your first time buying from this brand? Did you consider other brands?
first time, looked around a bit
View on Brett's build
Travis Pessina

293

Travis Pessina
2006 Dodge Charger
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?
Price, performance, sound is incredible
Is this your first time buying from this brand? Did you consider other brands?
Yes
Was it easy to install? Any installation tips that will help others?
Professional installed
Once you've had a chance to use the product, did it meet your expectations?
Good price for the performance
View on Travis'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?
After doing a good deal of research on different mufflers, and running into Summit Racing Equipment's video on Flowmaster exhaust series comparison video, I decided on this Super HushPower 2 muffler, which ended up being the right choice!
What were you trying to accomplish by adding this product?
My old exhaust system was rusting out (but not severely), so I thought it would be a nice project to get rid of it in favor of a lighter, better-sounding custom setup. I wanted something very sporty, but not aggressive, or too loud.
Was it easy install? Any installation tips that will help others?
Mostly yes because this part of the exhaust project was easier to put up with than the glasspack--both before and after making changes. This one was a bolt-on both times. It is secured with v-bands in case I want to swap it out, or remove it easier when I want to do something in the rear, such as dropping the rear subframe, for example.
Once you’ve had a chance to use the product, did it meet your expectations?
At first, my expectations were rather mixed. It was a bit louder than I expected before installing the glasspack, and the raspiness was more of a thing before I rearranged the exhaust to have the muffler closer to the rear. Moving it to the rear gave it the more preferred low-tone, "burbling" exhaust note I was looking for, but either way, it always sounded good--especially with a glasspack. I was even told by a few people that it sounded like a V10, noticing how similar 5-cylinder and V10 engines sound!
Any additional comments?
Definitely a nice, lightweight, and not-too-loud option for custom exhausts! It is on the quieter-end of the Flowmaster exhaust aggressiveness spectrum after all.
View on Neo's build
Gianfranco Estremadoyro

157

Gianfranco Estremadoyro
2009 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?
Loudest axlebacks in the market for the 3V with out compromising the "muscle car" sound.
What were you trying to accomplish by adding this product?
Make my car louder.
Was it easy install? Any installation tips that will help others?
Install was easy to do with the car lifted on ramps in my driveway.
Once you’ve had a chance to use the product, did it meet your expectations?
Met all my expectations.
Any additional comments?
I absolutely love this axlebacks and would recommend them to any 3V owner.
View on Gianfranco's build
Logan Salazar

47

Logan Salazar
2011 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?
Much better sound and better performance
What were you trying to accomplish by adding this product?
Muscle car sound and look
Was it easy install? Any installation tips that will help others?
Definitely make sure to use lots of grease to slide the parts together and adjust
Once you’ve had a chance to use the product, did it meet your expectations?
It exceeded my expectations exponentially, the raspyness of the exhaust really makes the car stand out.
View on Logan's build
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*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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