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Exhaust System Kit

Flowmaster - American Thunder Cat Back Exhaust System (817784)

$579.95

$644.95

You save: $65.00 (10%) off MSRP

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Check to see if this fits your vehicle

This part fits

  1. 2018 Ford Fiesta ST 1.6L L4 cid:97 cc:1596
  2. 2017 Ford Fiesta ST 1.6L L4 cid:97 cc:1596
  3. 2016 Ford Fiesta ST 1.6L L4 cid:97 cc:1596
  4. 2015 Ford Fiesta ST 1.6L L4 cid:97 cc:1596
  5. 2014 Ford Fiesta ST 1.6L L4 cid:97 cc:1596
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About this product

Part #: 817784

Flowmaster's American Thunder Cat-back exhaust system for the 2014-2017 Ford Fiesta ST with the 1.6L 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 2.50 inch mandrel-bent tubing and an Outlaw series muffler paired with a resonator for maximum power and exterior sound quality, but with a moderate and pleasant interior tone at cruising speeds. Other features include a polished 3.00 inch dual exhaust tip. This system includes all necessary parts, hardware and instructions for an easy installation.

More Details

Catalytic Converter IncludedNo
Exhaust SeriesAmerican Thunder
Exhaust TypeCat-Back
Exit PositionSide Out Rear
Heat Shield AttachedNo
Inlet Inside Diameter2.500 in.
Mount TypeUses Factory Hangers
Muffler Body Length6.500 in.
Muffler Body Material409S Stainless Steel
Muffler Count1
Muffler FinishPaint
Muffler Inlet Diameter2.500 in.
Muffler Outlet Diameter2.500 in.
Muffler Outlet LocationCenter
Muffler Overall Length25.000 in.
Muffler Part NumberKit Only
Muffler SeriesOutlaw
Muffler TypeReflection
Single or DualSingle
Sound LevelModerate/Aggressive
Tail Pipe Diameter2.500 in.
Tip CutAngle
Tip Diameter3.000 in.
Tip Edge StyleCut
Tip FinishPolished
Tip Length10.000 in.
Tip LogoEmbossed
Tip Material304 Stainless Steel
Tip TypeDouble Wall
Tubing Diameter2.500 in.
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?
I already had the Flowmaster Axle Back to go with it.
Is this your first time buying from this brand? Did you consider other brands?
I have other parts from Flowmaster.
View on Matt'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?
Super 40'soft sound amazing...but drone makes them not family or neighbour friendly.
Is this your first time buying from this brand? Did you consider other brands?
Yes. I have used magna flow in the past, better for longer drives but not as nasty sounding...and I mean nasty in a good way!
View on Brett's build
CeJay Innes-Mammen

371

CeJay Innes-Mammen
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?
Prior experience with these mufflers on other HEMI's
Is this your first time buying from this brand? Did you consider other brands?
Long time patron
View on CeJay'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?
Got these for a deal of a GT in the local junkyard. Cheap and had everything I needed to fit to my car.
Is this your first time buying from this brand? Did you consider other brands?
Yes, but my dad has had Flowmasters before so between that and their excellent reputation I knew they were for me.
Was it easy to install? Any installation tips that will help others?
Somewhat difficult. Passenger side pipe would not go in the car even after loosening the shock mounts and letting it droop from the control arms. It had to be cut and welded in the car
Once you've had a chance to use the product, did it meet your expectations?
Yes, sounded excellent especially for a V6
View on Joey'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 to try the single chamber muffler out
Is this your first time buying from this brand? Did you consider other brands?
No as I've always purchased Flowmaster
Once you've had a chance to use the product, did it meet your expectations?
Priced as usual for Flowmaster and I must say it's something you must experience yourself
View on Steven's build

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  • 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.

    Benefits of adding this mod

    An upgraded exhaust system is one of the easiest modifications that offers an immediate, noticeable performance improvement. Whether you’re cruising an M3 or modding a diesel truck, an upgraded exhaust will open up the restrictive factory system, allowing your engine to breathe better and deliver peak power! From lighter weight exhaust headers to improved cat-back systems, to better sounding mufflers, modifying your exhaust setup is a great place to express the character of your ride in a unique and cost effective way. Whatever you’re looking for in a modified exhaust system, we can provide the absolute best systems to make your vision a reality.

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    we ship worldwide!

    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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    Have a question? Ask an Expert!

    Finding the best parts can be tricky

    - but not to worry! Our team of experienced American Muscle, JDM, Euro, and off-road tuners are ready to answer your questions (as long as we’re not in the garage wrenching on our own builds).

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    Matt Farah

    Smoking Tire / The Drive

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    Thank you for all the help, really. You guys are awesome. This is all great info and I really appreciate everything you have done to help me with my build.

    James M.

    Ford Focus ST

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    Your customer service is wonderful. Thank you for taking care of this. My review will express all. Thank you!

    Wallace R

    Chevrolet Silverado 1500