cat-back

Flowmaster 817808 - Outlaw Series(TM) Cat Back Exhaust System

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$1,195.95

$1,328.95

You save: $133.00 (10%) off MSRP

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Check to see if this fits your vehicle

This part fits

  1. 2019 Ford Mustang Bullitt 5.0L V8 cid:302 cc:4951
  2. 2019 Ford Mustang GT 5.0L V8 cid:302 cc:4951
  3. 2019 Ford Mustang GT Premium 5.0L V8 cid:302 cc:4951
  4. 2018 Ford Mustang GT 5.0L V8 cid:302 cc:4951
  5. 2018 Ford Mustang GT Premium 5.0L V8 cid:302 cc:4951
Authorized Dealer

About this product

Part #: 817808

Flowmaster's Outlaw Cat-back exhaust system for the 2018-2019 Ford Mustang GT is perfect for the person looking for a very aggressive exhaust tone inside and outside the vehicle, with all of the performance benefits that you would expect from Flowmaster. This easy to bolt-on emissions-legal system for the 5.0L V8 features a pair of 409S stainless steel Outlaw Series mufflers with 3.00 inch stainless steel mandrel bent pipes and scavenger x-pipe. The system finishes off with 4.00 inch carbon fiber tips. This system does not fit models with the Active Performance Exhaust option. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, this system includes all necessary parts and hardware for installation.

More Details

Catalytic Converter IncludedNo
Exhaust SeriesOutlaw
Exhaust TypeCat-Back
Exit PositionDual Out Rear
Heat Shield AttachedNo
Inlet Inside Diameter3.000 in.
Mount TypeUses Factory Hangers
Muffler Body Length6.500 in.
Muffler Body Material409S Stainless Steel
Muffler Count2
Muffler FinishPainted
Muffler Inlet Diameter3.000 in.
Muffler Outlet Diameter3.000 in.
Muffler Outlet LocationCenter
Muffler Overall Length49.500 in.
Muffler Part NumberKit Only
Muffler SeriesOutlaw
Muffler TypeReflection
Tail Pipe Diameter3.000 in.
Tip CutAngle
Tip Diameter4.000 in.
Tip FinishNatural
Tip Length5.250 in.
Tip LogoPrinted
Tip Material304 StainlessSteel/Carbon Fiber
Tip Quantity4
Tip ShapeRound
Tip TypeDouble Wall
Tubing Diameter3.000 in.
Tubing Material409S Stainless Steel
Additional Documents
  1. Certificate of Originpdf
  2. Warrantypdf

See what our community says about flowmaster products

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What made you choose this particular product?
Quality and familiarity with sound.
Is this your first time buying from this brand? Did you consider other brands?
No
Was it easy to install? Any installation tips that will help others?
A little cumbersome on the garage floor, but very straight forward and fairly simple (exception of left side fixed bolt bracket from existing pro chamber :o ).
Once you've had a chance to use the product, did it meet your expectations?
Yes.
Any additional comments?
I sought a sound change toward something a little less aggressive. I never knew what exactly the existing cat back brand was. They were (well, I still have them in the garage) quality built, but very aggressive,, maybe 1 chamber in each muffler albeit thin. The sound went from a rabid crackle to a now lower tone rumble. Aggressive cam sound with the stroke and metallic courtesy sound from headers are all still there. ;)
View on Adm's build
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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
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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