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$1,195.95
$1,076.36
Flowmaster 817808 Outlaw Cat-Back System, 18-19 Mustang GT, 5.0L
Flowmaster 817808 Outlaw Cat-Back System, 18-19 Mustang GT, 5.0L

Flowmaster 817808 Outlaw Cat-Back System, 18-19 Mustang GT, 5.0L

Cat-Back Exhaust System Type, Dual Single or Dual, 3" Exhaust Pipe Size, Aggressive Sound Level

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Flowmaster 817808 Outlaw Cat-Back System, 18-19 Mustang GT, 5.0L
Flowmaster 817808 Outlaw Cat-Back System, 18-19 Mustang GT, 5.0L
Flowmaster 817808 Outlaw Cat-Back System, 18-19 Mustang GT, 5.0L
Flowmaster 817808 Outlaw Cat-Back System, 18-19 Mustang GT, 5.0L
Flowmaster 817808 Outlaw Cat-Back System, 18-19 Mustang GT, 5.0L
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Flowmaster 817808 Outlaw Cat-Back System, 18-19 Mustang GT, 5.0L
Flowmaster 817808 Outlaw Cat-Back System, 18-19 Mustang GT, 5.0L
Flowmaster 817808 Outlaw Cat-Back System, 18-19 Mustang GT, 5.0L
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We estimate this item will ship on or before January 15th.
Part # 378817808
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Important Messages:

  • This item ships directly from the manufacturer. It may take an additional 21 business days for Flowmaster to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.

Details

Exhaust System Type:
Cat-Back
Single or Dual:
Dual
Exhaust Pipe Size:
3"
Exhaust Exit:
Dual Split Rear
Sound Level:
Aggressive
Muffler(s) Included:
Yes
Muffler Quantity:
2
Muffler Type:
Reflection
Exhaust Tip Included:
Yes
Exhaust Tip Quantity:
4
Exhaust Tip Shape:
Round
Exhaust Tip Cut:
Angle
Exhaust Tip Edge Style:
Rolled Edge | Double-Wall
Exhaust Tip Size:
4.00"
Exhaust Tip Length:
5.25"
Exhaust System Material:
409 Stainless Steel
Muffler Inlet Diameter:
3.00"
Muffler Outlet Diameter:
3.00"
Muffler Overall Length:
49.50"
Muffler Body Length:
6.50"
Muffler Material:
409 Stainless Steel
Muffler Finish:
Painted
Muffler Color:
Black
Exhaust Tip Material:
304 Stainless Steel/Carbon Fiber
Exhaust Tip Finish:
Natural
Mount Type:
Uses Factory Hangers
Catalytic Converter(s) Included:
No
MFG. Part #:
817808
Sold in Quantity:
Kit
GTIN Code:
700042037636

Rebates

HolleyDays INSTANT REBATE. Select Holley, MSD, Mr Gasket, Earl's Performance, Demon Carburetion, Weiand, Lakewood, Superchips, Diablo Sport, RacePak, Hooker, NOS, Flowtech, Frostbite Performance Cooling, Mallory Ignition, STS Turbo, Hays, Accel, Quick Time, Edge, Quick Fuel, Anvil, Bright Earth, Flowmaster, Hurst, B&M, APR, Dinan, XDR discounted up to 10% through December 31, 2019.

Info

Flowmaster's Outlaw Cat-back exhaust system for the 18-19 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.
  • Flowmaster Reliability
  • Aggressive Sound
  • 409S Stainless Steel Construction
  • Dyno-Tuned for Maximum Performance
  • 3.0" Mandrel Bent Tubing
  • Quad 4.0" Carbon Fiber Tips
  • Scavenger X-Pipe
  • Not For Vehicles With Active Exhaust Valves

Installation Instructions (PDF)

Some parts are not legal for use in California or other states with similar laws/regulations

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Q & A

Videos & Articles
  • If you're ready to get your street machine sounding as good as it looks, it's important to know how each muffler will affect your sound and performance. Take a listen and decide which muffler is best for your rod.
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  • Maintaining your headers is an important part of any hot rod. Pat gives some tips and demonstrates how well Purple Metal Polish works for keeping your headers looking great.
  • Jeremy explains the different options of headers that Speedway Motors offers for Demolition Derby cars. Watch this video to see a variety of options and the benefits of certain headers.

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