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Flowmaster 817479 - American Thunder Cat Back Exhaust System

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$799.95

$888.95

You save: $89.00 (10%) off MSRP

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Check to see if this fits your vehicle

This part fits

  1. 2014 Dodge Challenger R/T 5.7L V8 cid:345
  2. 2013 Dodge Challenger R/T 5.7L V8 cid:345
  3. 2013 Dodge Challenger R/T Classic 5.7L V8 cid:345
  4. 2012 Dodge Challenger R/T 5.7L V8 cid:345
  5. 2012 Dodge Challenger R/T Classic 5.7L V8 cid:345
  6. 2011 Dodge Challenger R/T 5.7L V8 cid:345
  7. 2010 Dodge Challenger R/T 5.7L V8 cid:345
  8. 2009 Dodge Challenger R/T 5.7L V8 cid:345
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About this product

Part #: 817479

For the person who is looking for a complete Cat-back dual exhaust system with an aggressive tone. With easy fit in mind, these systems are mandrel bent for maximum performance and include specially selected mufflers. American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.

More Details

Exhaust SeriesAmerican Thunder
Exhaust TypeDual
Exit PositionDual Rear
Exit StyleStraight
Heat Shield AttachedNo
Inlet Diameter2.500 in.
MaterialStainless Steel
Muffler Count2
Muffler Part Number852546
Muffler SeriesSuper 40 Series
Outlet Diameter2.500 in.
Outlet Outside Diameter3.000 in.
Single or DualDual
Sound LevelAggressive
System TypeCat Back
Tail Pipe Diameter2.500 in.
Tip Quantity0
TitleFlowmaster 817479 Cat-back System 409S - Dual Rear Exit - American Thunder - Aggressive Sound
Tubing Diameter2.500 in.
Additional Documents
  1. Certificate of Originpdf
  2. Installation Instructionspdf
  3. Warrantypdf

See what our community says about flowmaster products

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What made you choose this particular product?
Had em before
View on Brock'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?
This product gives you that fantastic and aggressive sound you expect out of a muscle car. Highly recommend for anyone who wants to add a bit of growl to their ride!
Is this your first time buying from this brand? Did you consider other brands?
This is my first time buying from Flowmaster and I considered corsa as an alternative before settling on the Flowmasters.
Was it easy to install? Any installation tips that will help others?
I had them professionally installed.
Once you've had a chance to use the product, did it meet your expectations?
They sounded exactly how I wanted them to sound. I was overjoyed!
Any additional comments?
They do drone a bit during MDS activation and in the 2.2k rpm range. I would recommend 12inch cherry bomb glasspack mufflers to use in place of the resonators to tone down the drone while maintaining the impressive sound. Your mileage and preferences may vary.
View on Charles'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, makes the car super loud and I love it
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?
Yes I'm a mechanic by trade so I just did it myself
Once you've had a chance to use the product, did it meet your expectations?
Yes good price for what your getting
View on Nick'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?
Other exhaust clips with this muffler on the 2.4L engine. I preffered a custom dual exhaust with two of these over pre made catbacks.
Is this your first time buying from this brand? Did you consider other brands?
First!!!
View on Paul'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?
Had a friend at a automotive shop that took it off a customers car and was going to throw it away, so I was offered it for $100.
Is this your first time buying from this brand? Did you consider other brands?
Yes. I was actually looking at Gibson exhaust but I couldn't pass up the deal.
Was it easy to install? Any installation tips that will help others?
Easy install. Cutting is required on the factory exhaust and it's a little awkward to remove the stock exhaust by yourself.
Once you've had a chance to use the product, did it meet your expectations?
It's loud and drones some but with a manual you can keep the rpm in the right range to avoid this. Sounds great, almost like a VQ from a 350Z/370Z but a little raspier.
View on Jake'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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