Flowmaster 817734 - Outlaw Series(TM) Cat Back Exhaust System

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Flowmaster 817734 - Outlaw Series(TM) Cat Back Exhaust System

This part fits

  1. 2017 Ford Mustang GT 5.0L V8 cid:302 cc:4951
  2. 2017 Ford Mustang GT Premium 5.0L V8 cid:302 cc:4951
  3. 2016 Ford Mustang GT 5.0L V8 cid:302 cc:4951
  4. 2016 Ford Mustang GT Premium 5.0L V8 cid:302 cc:4951 Coupe
  5. 2015 Ford Mustang GT 5.0L V8 cid:302 cc:4951
  6. 2015 Ford Mustang GT 50 Years Limited Edition 5.0L V8 cid:302 cc:4951
  7. 2015 Ford Mustang GT Premium 5.0L V8 cid:302 cc:4951 Coupe
Authorized Dealer

About this product

Part #: 817734

Flowmaster's Outlaw Cat-back exhaust system for the 2015-2017 Ford Mustang GT is perfect for the person looking for a very deep and aggressive sound level outside and inside the car with all of the performance benefits that you would expect from Flowmaster. This exhaust is not for the faint of heart! This bolt-on DOR (Dual Out Rear) emissions-legal system for cars with the 5.0L engine features a pair of race proven Outlaw Series mufflers, a 3.00 in. Scavenger X-pipe assembly and dual mandrel bent 3.00 in. tailpipes for maximum performance. The system is built out of 409S stainless steel and utilizes 4.00 in. Polished Stainless Steel Flowmaster Embossed tips. Designed for an easy fit, this system includes all necessary parts and hardware for installation.

More Details

Catalytic Converter IncludedNo
Exhaust TypeDual
Exit PositionDual Rear
Exit StyleStraight
Heat Shield AttachedNo
Inlet Diameter3.000 in.
MaterialStainless Steel
Mount TypeFlanged
Muffler Count2
Muffler Part NumberKit Only
Muffler SeriesOutlaw
Muffler TypeWelded Baffle
Outlet Diameter3.000 in.
Single or DualDual
Sound LevelAggressive
System TypeCat Back
Tail Pipe Diameter3.000 in.
Tip CutAngle
Tip Diameter4.000 in.
Tip FinishPolished
Tip Length5.250 in.
Tip LogoEmbossed
Tip MaterialStainless Steel
Tip Quantity2
Tip ShapeRound
Tip TypeDouble Wall
TitleFlowmaster 817734 Cat-back Exhaust System - Outlaw - DOR - 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

Logan Salazar


Logan Salazar
2011 Ford Mustang
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?
Much better sound and better performance
What were you trying to accomplish by adding this product?
Muscle car sound and look
Was it easy install? Any installation tips that will help others?
Definitely make sure to use lots of grease to slide the parts together and adjust
Once you’ve had a chance to use the product, did it meet your expectations?
It exceeded my expectations exponentially, the raspyness of the exhaust really makes the car stand out.
View on Logan's build
California prop 65 warningWARNING: Cancer and Reproductive Harm

*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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