cat-back

Flowmaster 817587 - American Thunder Cat Back Exhaust System

Name: Flowmaster 817587 - American Thunder Cat Back Exhaust System (817587)
Brand: Flowmaster
SKU: 5b00024d259b31d67f87fcfc
Price: 859.73 USD
Availability: InStock

$859.73

Discontinued

This product has been discontinued by the manufacturer.

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SELECT YOUR VEHICLE

This part fits

2014 Ford Mustang GT 5.0L V8 cid:302 cc:4951
2013 Ford Mustang GT 5.0L V8 cid:302 cc:4951

Authorized Dealer

About this product

Part #: 817587

For the serious enthusiast who is looking for all the performance benefits of a complete Cat-back dual exhaust system, this is it. As an American Thunder system, it delivers an aggressive exterior sound level and a moderate interior tone that is suited to the enthusiast who wants to be heard. With maximum performance and easy fit in mind, the system is mandrel bent and includes specially engineered mufflers featuring Delta Flow technology. 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 a simple installation. Note: does not fit GT500.

More Details

2WD/4WD	2WD
Automotive Item Grade	High Performance Part
Bullet Point #1	Mandrel bent 16 gauge stainless steel tubing
Bullet Point #2	Aggressive Sound Exterior Exhaust Tone
Bullet Point #3	Header-back System
Bullet Point #4	Flowmaster quality
Exhaust Series	American Thunder
Exhaust Type	Single
Exit Position	Dual Rear Exit
Exit Style	Straight
Heat Shield	No
Heat Shield Attached	No
Inlet Diameter	3
Inlet Diameter (in)	3
Inlet Inside Diameter (in.)	3
Material	Stainless Steel
Muffler Count	2
Muffler Part Number	Kit Only
Muffler Quantity	2
Muffler Series	60 Series
Outlet Diameter	3.0 in.
Outlet Diameter (in)	3
Outlet Outside Diameter (in.)	3
Single Dual	Dual
Single or Dual	Dual
Sound Level	Aggressive Sound
System Type	Cat Back
System Type	Cat-back System
Tip Diameter (in)	4
Tip Diameter (in.)	4

Additional Documents

See what our community says about flowmaster products

Josh Elledge

2015 Ford Mustang

What made you choose this particular product?

Deep quality sound.

Is this your first time buying from this brand? Did you consider other brands?

No. And yes I considered a few different brands.

Was it easy to install? Any installation tips that will help others?

Yes.

Once you've had a chance to use the product, did it meet your expectations?

A little on the quiet sid but good sound

View on Josh's build

221

John Michell

2015 Dodge Charger

What made you choose this particular product?

owned flowmaster products before, always happy

Is this your first time buying from this brand? Did you consider other brands?

nope

Was it easy to install? Any installation tips that will help others?

cost about $80 to install at my local Meineke

View on John's build

164

Eduardo Ambriz

2014 Ford Fiesta

What made you choose this particular product?

I chose it because it was a good value in terms of sound for the money. It was also plug and play whereas other systems required a fair bit of modification on my part and I didn't want to deal with that.

Is this your first time buying from this brand? Did you consider other brands?

This is my first time buying from them and I had considered Borla, but went with fFowmaster because of its value.

Was it easy to install? Any installation tips that will help others?

I installed it myself and it wasn't all that easy. The nut is just supposed to be removed from the bolt and the new exhaust should be bolted right back on. The thing is that my bolt was stripped and it was pressed in from the factory so it had to get pushed back out and replaced with a new bolt and nut. Other than that it was plug and play.

Once you've had a chance to use the product, did it meet your expectations?

It is definitely a good value as it gives a deeper tone while making it a bit louder, but not loud enough that it gets annoying. It also doesn't drone too bad when just driving around town.

View on Eduardo's build

207

Brian Pawlowski

2016 Ford F-150

What made you choose this particular product?

Sounds good, good sound for price.I have friends who have flow master.

Is this your first time buying from this brand? Did you consider other brands?

First time for flow master. Was looking at Borla but the price tag was just too much. Borla is more expensive because they use 304 stainless steel where flow master used 409 which is a less durable version of stainless steel, and has been known to rust out.

Was it easy to install? Any installation tips that will help others?

Need a lift or need to cut exhaust out if on ground. Lay out parts first and have clamps ready. Overall wasn't bad at all.

Once you've had a chance to use the product, did it meet your expectations?

Yes! It is loud and sounds good. Time will tell about the rust issues.

View on Brian's build

132

Kaelen Lillard

1994 Lexus LS 400

What made you choose this particular product?

I wanted the car to have a rumble but not too loud.

Is this your first time buying from this brand? Did you consider other brands?

Yes, I did consider Magnaflow.

View on Kaelen's build

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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