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Flowmaster 817481 American Thunder Cat-Back Exhaust
Part No. 817481

This is a direct fit, vehicle specific part.
Please verify this fits your vehicle.

vehicle fitment information
Attribute Size / Style
Body Package Without Ground Effects
Body Style Coupe (2 Door)
Exhaust Type Dual
Exit Position Dual Rear
Exit Style Straight
Inlet Size (In.) 3
Material Stainless Steel
Outlet Size (In.) 3
shipping
FREE
your price
$936.34

in stock
Quantity
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  • American Thunder Exhaust System, Dual, Dual Rear Exit, Incl. 3 in. Tubing, Classic 40 Series Mufflers/Scavenger X-Pipe, 4 in. Logo Embossed Stainless Tips
  • Aggressive Exterior Exhaust Tone
  • Cat Back System
  • Dual Out Rear Exit
  • Dyno Tuned for Maximum Performance
  • Incl. Hangers and Hardware For Easy Installation
  • Limited Lifetime Warranty
  • Mandrel Bent Tubing
  • www.Flowmastermufflers.com
  • Exhaust Type: Dual
  • Exit Position: Dual Rear
  • Exit Style: Straight
  • Inlet Size (in.): 3
  • Material: Stainless Steel
  • Outlet Size (in.): 3

REVIEW SNAPSHOT®

by PowerReviews
Flowmaster 817481 American Thunder Cat-Back Exhaust
 
4.6

(based on 7 reviews)

Ratings Distribution

  • 5 Stars

     

    (4)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Easy to install (3)

Cons

    Best Uses

      Reviewed by 7 customers

      Sort by

      Displaying reviews 1-7

      Back to top

       
      4.0

      Great sound but not what I expected

      By Daniel

      from Midland, TX

      About Me Auto Enthusiast, Casual Driver

      Verified Buyer

      Pros

      • Easy To Install

      Cons

        Best Uses

        • Everyday Driving

        Comments about Flowmaster 817481 American Thunder Cat-Back Exhaust:

        I bought this to add a more aggressive sound to my camaro but it's not very aggressive at all. It does sound good but it's not the sound I expected from flowmaster. Even their demo video does not sound like the actual exhaust.

         
        4.0

        American Thunder cat-back

        By Gary

        from Sioux Falls, SD

        About Me Auto Enthusiast

        Verified Reviewer

        Pros

        • Easy To Install
        • Increases Power

        Cons

        • Too Noisy

        Best Uses

        • Performance Driving
        • Replacement

        Comments about Flowmaster 817481 American Thunder Cat-Back Exhaust:

        I installed this system on my 2011 Camaro SS after doing a ton of Youtube and forum searches. I wanted a 3" cat-back system to compliment the Magnuson blower and other mods I had my dealership install on the car. Definately noticed a slight improvement in performance over the stock system. My only complaint is that the sytem does pop and crackle when I let off the gas and it does drone at highway speeds (and this was after I called Flowmaster before ordering and asked if it popped or droned). The overall sound is fine but it annoys me enough that I'll probably have a set of resonators installed. Streetside was great though. Best prices by far on this and the shipping was quick and professional.

         
        5.0

        Makes the Camaro sound Bad to the bone!

        By sconsign

        from Morgan Hill

        About Me Casual Driver

        See all my reviews

        Verified Reviewer

        Pros

        • Easy To Install
        • Great Sound
        • Increases Power
        • Sounds Great

        Cons

          Best Uses

          • Everyday Driving
          • Performance Driving
          • Racing
          • Replacement

          Comments about Flowmaster 817481 American Thunder Cat-Back Exhaust:

          Great Price, easy install, great sound! Did have one fitment/alignment problem, but Flowaster sent me a new part, free of charge and with very little hassle. I was impressed at their response results. When accelerating sounds like a race car, but when cruising it is nice and quiet. Highly recommend.

           
          5.0

          This literally was the "Best Purchase Ever"

          By Chuckd

          from Huntsville,AL

          Comments about Flowmaster 817481 American Thunder Cat-Back Exhaust:

          This site is by far one of the best site if not the best site on the net when it comes to your auto needs and they are super fast and helpful allow me to explain I order a "Flowmaster" on 30 October I received it 2 Nov and had it install 3 Nov You guys are the best and the product was flawless. Thanks and my Camaro sounds great!!!!!

           
          5.0

          Awesome!!!

          By NavyDood

          from DFW

          Comments about Flowmaster 817481 American Thunder Cat-Back Exhaust:

          Company... Awesome business practices with StreetSide Auto. Very easy transaction from beginning to end with the sales department. Even got the exhaust a day ahead of scheduled delivery.

          Exhaust... I have never really liked FlowMaster because it seems like every Moostang owner or truck owner uses them. After researching many exhaust system and viewing enough vidoes of other exhaust systems until I wanted to pull my hair out, I kept going back to the FlowMaster American Thunder system and saying "perfect". It doesn't have a tinny, gurgle, burble, raspy or just plain loud sound. It is a deep lower decibel sound that hits you just right. This system is a 409 stainless system for an unbelieavable great price. Don't get lured into the sales pitch that T304 is better than T409, because it really isn't. Blowing your money on a $1200+ catback system is ignoranus and their sound is really not that great.

           
          4.0

          A Great Deal

          By SPECTR

          from Great Adirondacks!!!

          See all my reviews

          Comments about Flowmaster 817481 American Thunder Cat-Back Exhaust:

          The Flowmaster system is outstanding..just what I wanted, an old muscle car sound on my modern muscle car.
          BETTER yet was the outstanding customer service by Streetside Auto. A no hassles, happy to help attitude, I recommend them on ALL my web boards!!!

          (2 of 2 customers found this review helpful)

           
          5.0

          Excellent buy

          By haywoodjablowme

          from Deltona, Florida

          See all my reviews

          Comments about Flowmaster 817481 American Thunder Cat-Back Exhaust:

          The Flowmaster american thunder series gave my camaro an awesome aggressive sound and nice power. The installation was a piece of cake and only took 30 minutes of time to do lying on my back with the car on wheel ramps. The instrucions were easy to follow and the hardware was stainless and heavy duty. No problems. This was the best way to go for me.

          Displaying reviews 1-7

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          YearsMakeModelSubModelEngineFuel
          2010-2013CHEVROLETCAMAROSS6.2L / 376 C.I.D.-6.2L / 376 C.I.D.GAS
          2013-2013CHEVROLETCAMARO (Canadian)SS6.2L / 376 C.I.D.-6.2L / 376 C.I.D.GAS
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          • Shipping Policy

            Free Ground Shipping
            Free FedEx ground shipping on all orders over $100. Free shipping to 48 Continental United States only. Orders under $100 will incur a FedEx ground shipping charge of $9.95.

            $9.95 Per Wheel/$25 Per Tire
            Each wheel will incur a $9.95 per wheel fee and each tire will incur a $25 per tire fee up to $99. You will be charged a maximum of $99 regardless of how many wheels and/or tires you purchase.

            $99 Truck Freight
            Oversized parts will incur a $99 truck freight charge that FedEx cannot provide standard ground shipping on.