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Flowmaster 817674 - American Thunder Cat Back Exhaust System

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$457.95

$508.95

You save: $51.00 (10%) off MSRP

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Flowmaster 817674 - American Thunder Cat Back Exhaust System

This part fits

  1. 2018 Jeep Wrangler JK
  2. 2017 Jeep Wrangler
  3. 2016 Jeep Wrangler
  4. 2015 Jeep Wrangler
  5. 2014 Jeep Wrangler
  6. 2013 Jeep Wrangler
  7. 2012 Jeep Wrangler
  8. 2011 Jeep Wrangler Unlimited Sahara 3.8L V6 cid:231 cc:3778
  9. 2011 Jeep Wrangler Unlimited Rubicon 3.8L V6 cid:231 cc:3778
  10. 2011 Jeep Wrangler Unlimited 70th Anniversary 3.8L V6 cid:231 cc:3778
  11. 2011 Jeep Wrangler Unlimited Sport 3.8L V6 cid:231 cc:3778
  12. 2011 Jeep Wrangler Rubicon 3.8L V6 cid:231 cc:3778
  13. 2011 Jeep Wrangler Sahara 3.8L V6 cid:231 cc:3778
  14. 2011 Jeep Wrangler Sport 3.8L V6 cid:231 cc:3778
  15. 2011 Jeep Wrangler 70th Anniversary 3.8L V6 cid:231 cc:3778
  16. 2010 Jeep Wrangler
  17. 2009 Jeep Wrangler X 3.8L V6 cid:231 cc:3778
  18. 2009 Jeep Wrangler X S 3.8L V6 cid:231 cc:3778
  19. 2009 Jeep Wrangler Unlimited Sahara 3.8L V6 cid:231 cc:3778
  20. 2009 Jeep Wrangler Unlimited X 3.8L V6 cid:231 cc:3778
  21. 2009 Jeep Wrangler Sahara 3.8L V6 cid:231 cc:3778
  22. 2009 Jeep Wrangler Unlimited Rubicon 3.8L V6 cid:231 cc:3778
  23. 2009 Jeep Wrangler Rubicon 3.8L V6 cid:231 cc:3778
  24. 2008 Jeep Wrangler
  25. 2007 Jeep Wrangler
  26. show all...
Authorized Dealer

About this product

Part #: 817674

Flowmasters new American Thunder cat-back system for the 2007-2018 Jeep Wrangler JK is perfect for the person looking for maximum performance and ground clearance from their exhaust system. This 2.50" system features a 409S stainless steel mandrel bent tailpipe with a 3.00" polished stainless steel tip and fits both 2 and 4 door models with the 3.6L and 3.8L V6 engines. This system replaces the factory transverse muffler and relocates the Super HP-2 muffler behind the factory catalytic converter, providing a moderate to aggressive sound level. This relocation allows for better ground clearance when driving off-road. Because the tailpipe is tucked up so high, an aftermarket metal bumper is recommended. 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.

More Details

Exhaust SeriesAmerican Thunder
Exhaust TypeSingle
Exit PositionSingle Rear
Exit StyleTurn Down
Heat Shield AttachedNo
Inlet Diameter2.500 in.
Inlet Inside Diameter2.500 in.
MaterialStainless Steel
Muffler Count1
Muffler Part NumberKit Only
Muffler SeriesSuper HP-2
Outlet Diameter2.500 in.
Outlet Outside Diameter3.000 in.
Single or DualDual
Sound LevelModerate
System TypeCat Back
Tail Pipe Diameter2.500 in.
Tip Diameter3.000 in.
Tip Length3.750 in.
Tip Quantity1
TitleFlowmaster 817674 Cat-back System 409S - Single Rear Exit - American Thunder - Moderate Sound
Tubing Diameter2.500 in.
Additional Documents
  1. Certificate of Originpdf
  2. Installation Instructionspdf
  3. Warrantypdf

See what our community says about flowmaster products

Michael Caffrey

217

Michael Caffrey
2000 Chevrolet S-10
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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
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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