Special discount price: enter JUNE at checkout for 9% off. *
close promo banner icon

Exhaust System Kit

Flowmaster - Outlaw Series(TM) Cat Back Exhaust System (817689)

$899.95

$999.95

You save: $100.00 (10%) off MSRP

stock messaging Out of StockOut of Stock
Order now to be added to the priority list
Check to see if this fits your vehicle

This part fits

  1. 2018 Chevrolet Silverado 1500 WT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.8 in. bed
  2. 2018 GMC Sierra 1500 Base 4.3L V6 cid:262 Crew Cab Pickup 69.3 in. bed
  3. 2018 GMC Sierra 1500 SLE 5.3L V8 cid:325 cc:5328 Extended Cab Pickup 78.8 in. bed
  4. 2018 GMC Sierra 1500 SLE 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.8 in. bed
  5. 2018 GMC Sierra 1500 SLE 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  6. 2018 GMC Sierra 1500 SLT 5.3L V8 cid:325 cc:5328 Extended Cab Pickup 78.8 in. bed
  7. 2018 GMC Sierra 1500 SLT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.8 in. bed
  8. 2018 GMC Sierra 1500 SLT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  9. 2018 GMC Sierra 1500 SLE 4.3L V6 cid:262 Extended Cab Pickup 78.8 in. bed
  10. 2018 GMC Sierra 1500 Base 5.3L V8 cid:325 cc:5328 Extended Cab Pickup 78.8 in. bed
  11. 2018 GMC Sierra 1500 Denali 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  12. 2018 Chevrolet Silverado 1500 Custom 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.8 in. bed
  13. 2018 Chevrolet Silverado 1500 Custom 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  14. 2018 GMC Sierra 1500 Denali 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.8 in. bed
  15. 2018 Chevrolet Silverado 1500 LS 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  16. 2018 Chevrolet Silverado 1500 High Country 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.8 in. bed
  17. 2018 Chevrolet Silverado 1500 High Country 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  18. 2018 Chevrolet Silverado 1500 LT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  19. 2018 Chevrolet Silverado 1500 LS 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.8 in. bed
  20. 2018 Chevrolet Silverado 1500 LS 5.3L V8 cid:325 cc:5328 Extended Cab Pickup 69.3 in. bed
  21. 2018 Chevrolet Silverado 1500 LTZ 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.8 in. bed
  22. 2018 Chevrolet Silverado 1500 LTZ 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  23. 2018 Chevrolet Silverado 1500 LT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.8 in. bed
  24. 2018 Chevrolet Silverado 1500 WT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  25. 2018 Chevrolet Silverado 1500 SSV 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.8 in. bed
  26. 2018 Chevrolet Silverado 1500 SSV 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  27. 2018 GMC Sierra 1500 Base 4.3L V6 cid:262 Crew Cab Pickup 78.8 in. bed
  28. 2018 GMC Sierra 1500 Base 4.3L V6 cid:262 Extended Cab Pickup 78.8 in. bed
  29. 2018 GMC Sierra 1500 SLE 4.3L V6 cid:262 Crew Cab Pickup 69.3 in. bed
  30. 2018 GMC Sierra 1500 Base 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.8 in. bed
  31. 2018 GMC Sierra 1500 Base 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  32. 2018 GMC Sierra 1500 SLE 4.3L V6 cid:262 Crew Cab Pickup 78.8 in. bed
  33. 2017 Chevrolet Silverado 1500 LT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  34. 2017 GMC Sierra 1500 SLE 5.3L V8 cid:325 cc:5328 Extended Cab Pickup 78.9 in. bed
  35. 2017 GMC Sierra 1500 SLT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  36. 2017 Chevrolet Silverado 1500 SSV 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  37. 2017 Chevrolet Silverado 1500 SSV 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  38. 2017 Chevrolet Silverado 1500 WT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  39. 2017 Chevrolet Silverado 1500 LT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  40. 2017 Chevrolet Silverado 1500 LTZ 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  41. 2017 Chevrolet Silverado 1500 LTZ 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  42. 2017 Chevrolet Silverado 1500 LS 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  43. 2017 Chevrolet Silverado 1500 LS 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  44. 2017 Chevrolet Silverado 1500 WT 5.3L V8 cid:325 cc:5328 Extended Cab Pickup 78.9 in. bed
  45. 2017 Chevrolet Silverado 1500 High Country 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  46. 2017 Chevrolet Silverado 1500 High Country 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  47. 2017 GMC Sierra 1500 SLT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  48. 2017 GMC Sierra 1500 Denali 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  49. 2017 GMC Sierra 1500 SLE 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  50. 2017 GMC Sierra 1500 SLE 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  51. 2017 GMC Sierra 1500 Base 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  52. 2017 GMC Sierra 1500 Base 5.3L V8 cid:325 cc:5328 Extended Cab Pickup 78.9 in. bed
  53. 2017 GMC Sierra 1500 Denali 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  54. 2017 Chevrolet Silverado 1500 WT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  55. 2017 GMC Sierra 1500 Base 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  56. 2017 GMC Sierra 1500 SLT 5.3L V8 cid:325 cc:5328 Extended Cab Pickup 78.9 in. bed
  57. 2016 Chevrolet Silverado 1500 LT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  58. 2016 GMC Sierra 1500 SLE 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  59. 2016 GMC Sierra 1500 SLT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  60. 2016 GMC Sierra 1500 Base 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  61. 2016 GMC Sierra 1500 Denali 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  62. 2016 GMC Sierra 1500 Denali 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  63. 2016 Chevrolet Silverado 1500 WT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  64. 2016 Chevrolet Silverado 1500 WT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  65. 2016 GMC Sierra 1500 Base 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  66. 2016 Chevrolet Silverado 1500 LTZ 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  67. 2016 Chevrolet Silverado 1500 SSV 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  68. 2016 Chevrolet Silverado 1500 SSV 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  69. 2016 Chevrolet Silverado 1500 High Country 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  70. 2016 Chevrolet Silverado 1500 LT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  71. 2016 Chevrolet Silverado 1500 LTZ 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  72. 2016 Chevrolet Silverado 1500 High Country 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  73. 2016 Chevrolet Silverado 1500 LS 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  74. 2016 GMC Sierra 1500 SLT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  75. 2016 Chevrolet Silverado 1500 LS 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  76. 2016 GMC Sierra 1500 SLE 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  77. 2015 Chevrolet Silverado 1500 LS 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  78. 2015 Chevrolet Silverado 1500 LTZ 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  79. 2015 GMC Sierra 1500 Denali 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  80. 2015 GMC Sierra 1500 SLT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  81. 2015 GMC Sierra 1500 SLT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  82. 2015 Chevrolet Silverado 1500 LT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  83. 2015 Chevrolet Silverado 1500 LT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  84. 2015 Chevrolet Silverado 1500 LS 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  85. 2015 Chevrolet Silverado 1500 SSV 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  86. 2015 Chevrolet Silverado 1500 LTZ 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  87. 2015 GMC Sierra 1500 SLE 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  88. 2015 Chevrolet Silverado 1500 WT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  89. 2015 Chevrolet Silverado 1500 WT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  90. 2015 Chevrolet Silverado 1500 SSV 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  91. 2015 GMC Sierra 1500 Denali 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  92. 2015 GMC Sierra 1500 Base 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  93. 2015 GMC Sierra 1500 Base 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  94. 2015 GMC Sierra 1500 SLE 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  95. 2015 Chevrolet Silverado 1500 High Country 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  96. 2015 Chevrolet Silverado 1500 High Country 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  97. 2014 GMC Sierra 1500 Base 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  98. 2014 GMC Sierra 1500 Base 5.3L V8 cid:325 cc:5328 Extended Cab Pickup 78.9 in. bed
  99. 2014 GMC Sierra 1500 SLE 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  100. 2014 GMC Sierra 1500 SLE 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  101. 2014 GMC Sierra 1500 SLT 5.3L V8 cid:325 cc:5328 Extended Cab Pickup 78.9 in. bed
  102. 2014 GMC Sierra 1500 SLT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  103. 2014 GMC Sierra 1500 SLT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  104. 2014 Chevrolet Silverado 1500 High Country 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  105. 2014 GMC Sierra 1500 SLE 5.3L V8 cid:325 cc:5328 Extended Cab Pickup 78.9 in. bed
  106. 2014 GMC Sierra 1500 Base 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  107. 2014 Chevrolet Silverado 1500 WT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  108. 2014 Chevrolet Silverado 1500 WT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  109. 2014 Chevrolet Silverado 1500 LTZ 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  110. 2014 Chevrolet Silverado 1500 LTZ 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  111. 2014 Chevrolet Silverado 1500 LT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 78.9 in. bed
  112. 2014 Chevrolet Silverado 1500 LT 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  113. 2014 Chevrolet Silverado 1500 High Country 5.3L V8 cid:325 cc:5328 Crew Cab Pickup 69.3 in. bed
  114. show all...
Authorized Dealer

About this product

Part #: 817689

Flowmaster's Outlaw Cat-back exhaust system for the 2014-2018 GM Silverado and Sierra 1500 trucks (also fits 2019 classic models) is perfect for the person looking for maximum sound levels both inside and outside of the truck, with all of the performance benefits that you would expect from Flowmaster. This bolt-on DOR/DOS (Dual Out Rear or Dual Out Side) emissions-legal system for trucks with the 5.3L V8 engine features a stainless steel Super 10 Series muffler and dual mandrel bent 3.00 in. stainless steel tailpipes for maximum performance. The system also features Black Ceramic coated 4.00 in. double wall stainless steel tips. The exhaust system is covered by Flowmaster's Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation. Note: Fits Crew Cab and Double Cab models only.

More Details

Exhaust SeriesOutlaw
Exhaust TypeDual
Exit PositionDual Out Side
Exit PositionDual Out Rear
Exit StyleStraight
Heat Shield AttachedNo
Inlet Inside Diameter3.000 in.
MaterialStainless Steel
Mount TypeFlanged
Muffler Count1
Muffler SeriesSuper 10 Series
Muffler TypeWelded Baffle
Outlet Outside Diameter4.000 in.
ShapeOval
Single or DualDual
Sound LevelAggressive
System TypeCat Back
Tail Pipe Diameter3.000 in.
Tip CutAngle
Tip Diameter4.000 in.
Tip Edge StyleCut
Tip FinishBlack and Ceramic
Tip Length13.000 in.
Tip LogoEmbossed
Tip MaterialStainless Steel
Tip Quantity2
Tip ShapeRound
Tip TypeDouble Wall
TitleFlowmaster 817689 Cat-back System 409S - Outlaw - Aggressive Sound
Tubing Diameter3.000 in.
Additional Documents
  1. Certificate of Originpdf
  2. Warrantypdf

See what our community says about flowmaster products

Michael Caffrey

190

Michael Caffrey
2000 Chevrolet S-10
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 recommended by the installer
Is this your first time buying from this brand? Did you consider other brands?
Yes
View on Michael'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?
Its Flow master, so of course it sounds good and it doesn't have packing to wear out.
View on Cameron'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?
LIKE: Aggressive sound, Black muffler, qp Cold starts, Chrome tips DISLIKE: Not much to dislike LABOR: Did it myself INSTALLATION: Step by step instructions, NOTE: make sure you measure and mark before you cut off old exhaust, Took around 3 to 5 hours (took my time) PERFORMANCE: Deep aggressive sound, allows more air to flow. RECOMMEND: I would RECOMMEND for those who are comfortable cutting exhaust, but professional installation also encouraged if you arent up for the challenge.
View on Robert's build
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?
Yes
View on Travis'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 on car when purchased
Is this your first time buying from this brand? Did you consider other brands?
No. I had it on another mustang and wasn't a fan
Was it easy to install? Any installation tips that will help others?
Installed in driveway. Good fit, no issues
Once you've had a chance to use the product, did it meet your expectations?
Not a fan of the sound of flowmeter mufflers
View on Jacob 's build

TOP RATED Flowmaster Exhaust

  • Flowmaster - FlowFX Cat-Back Exhaust System  photo
    MFR# 717834Flowmaster - FlowFX Cat-Back Exhaust System
    $534.95$594.95
    Save $60.00 (10%) off MSRP
  • Flowmaster - FlowFX Direct Fit Muffler Kit  photo
    MFR# 717835Flowmaster - FlowFX Direct Fit Muffler Kit
    $310.95$345.95
    Save $35.00 (10%) off MSRP
  • Flowmaster - FlowFX Cat-Back Exhaust System  photo
    MFR# 717858Flowmaster - FlowFX Cat-Back Exhaust System
    $479.95$533.95
    Save $54.00 (10%) off MSRP
  • 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.

    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.

    shipping-worldwide-jpg

    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
    International shipping icon
    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).

    chat-iconLive Chat
    Ask our expert tuners anything!
    call_iconCall Us
    1 (800) 959-4304
    featured vehicle testimonial imagequote icon

    Wheelwell wants to be the new online hub for car parts and accessories.

    author testimonial image
    featured vehicle testimonial imagequote icon

    Wheelwell helps you organize all your stuff for your car, I’ve loaded all my cars on Wheelwell and you can see all the parts I’ve put in them and that may help you make a decision with your own build.

    author testimonial image

    Matt Farah

    Smoking Tire / The Drive

    featured vehicle testimonial imagequote icon

    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

    featured vehicle testimonial imagequote icon

    Your customer service is wonderful. Thank you for taking care of this. My review will express all. Thank you!

    Wallace R

    Chevrolet Silverado 1500