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

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Ships by 02/08/2023
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Flowmaster 817590 - 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?
Sound and quality
What were you trying to accomplish by adding this product?
Louder
Was it easy install? Any installation tips that will help others?
Professionally installed
Once you’ve had a chance to use the product, did it meet your expectations?
Yes
View on Justin's build
Johnathan Hirt

15

Johnathan Hirt
2015 Dodge Dart
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?
Price
What were you trying to accomplish by adding this product?
Better sound
Once you’ve had a chance to use the product, did it meet your expectations?
Good for the price
View on Johnathan's build
Trace Butcher

595

Trace Butcher
1979 Ford F-150
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?
Performance
What were you trying to accomplish by adding this product?
Sound
View on Trace's build
Christian Larsen

23

Christian Larsen
2015 Ford Mustang
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
Once you’ve had a chance to use the product, did it meet your expectations?
It sounds good, but drones a lot when on the highway.
Any additional comments?
Probably going to run a Borla Stinger S-Type soon.
View on Christian'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?
Morr aggressive sound
What were you trying to accomplish by adding this product?
Improved exhaust note
Was it easy install? Any installation tips that will help others?
Professionally installed
Once you’ve had a chance to use the product, did it meet your expectations?
Yes
View on Deandre'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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