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Exhaust System Kit

Flowmaster - Outlaw Series(TM) Cat Back Exhaust System (817590)

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$879.95

$977.95

You save: $98.00 (10%) off MSRP

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TOP MEMBER BUILDS RUNNING THIS MOD

Flowmaster - Outlaw Series(TM) Cat Back Exhaust System

This part fits

  1. 2014 Ford Mustang GT 5.0L V8 cid:302 cc:4951
  2. 2013 Ford Mustang GT 5.0L V8 cid:302 cc:4951
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About this product

Part #: 817590

The Outlaw Cat-back exhaust systems feature race bred Outlaw mufflers for a very aggressive track oriented sound inside the car and out. Featuring 3.00 in. mandrel bent piping, this Outlaw system bolts directly behind the OE cats with our Scavenger X pipe assembly and delivers noticeable increases in horsepower and torque, while maintaining 50 state emissions legality. The 4.00 in. polished stainless tips provide a finished look to the American made T409 stainless exhaust system, and Flowmaster's lifetime limited warranty protects the system.

More Details

Exhaust SeriesOutlaw
Exhaust TypeDual
Exit PositionDual Rear
Exit StyleStraight
Heat Shield AttachedNo
Inlet Diameter3.000 in.
Inlet Inside Diameter3.000 in.
MaterialStainless Steel
Muffler Count2
Muffler Part NumberKit Only
Muffler SeriesOutlaw
Outlet Diameter3.000 in.
Outlet Outside Diameter4.000 in.
Single or DualDual
Sound LevelAggressive
System TypeCat Back
Tail Pipe Diameter3.000 in.
Tip Diameter4.000 in.
Tip Quantity2
TitleFlowmaster 817590 Cat-back System 409S - Dual Rear Exit - Outlaw - Aggressive Sound
Tubing Diameter3.000 in.
Additional Documents
  1. Certificate of Originpdf
  2. Installation Instructionspdf
  3. 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?
It gives Chevy 3.8 liter a better exhaust sound
Is this your first time buying from this brand? Did you consider other brands?
I consider spintech mufflers
Was it easy to install? Any installation tips that will help others?
They were just welded in place
Once you've had a chance to use the product, did it meet your expectations?
yes
View on Donte'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?
Came with the car
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?
Don't know
Once you've had a chance to use the product, did it meet your expectations?
Never had any to begin with
Any additional comments?
A little highway drone
View on Bailey'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?
Bought mandrel bends, muffler and pipe from Jegs. Can't beat their pricing. They also sell the pre-bent Flowmaster tail pipe sections, which are worth the money.
Any additional comments?
Nice quiet muffler, what I was looking for.
View on Craig'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?
It was on the car when I got it
View on Alan'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?
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

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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.

    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