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Flowmaster 817674 - American Thunder Cat Back Exhaust System

Name: Flowmaster 817674 - American Thunder Cat Back Exhaust System (817674)
Brand: Flowmaster
SKU: 5b00028d259b31d67f887d8f
Price: 481.95 USD
Availability: InStock
Rating: 5 (1 reviews)

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$481.95

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TOP MEMBER BUILDS RUNNING THIS MOD

Flowmaster 817674 - American Thunder Cat Back Exhaust System

75
2012 Jeep Wrangler
Chase Howe

This part fits

2018 Jeep Wrangler JK
2017 Jeep Wrangler
2016 Jeep Wrangler
2015 Jeep Wrangler
2014 Jeep Wrangler
2013 Jeep Wrangler
2012 Jeep Wrangler
2011 Jeep Wrangler Unlimited Sahara 3.8L V6 cid:231 cc:3778
2011 Jeep Wrangler Unlimited Rubicon 3.8L V6 cid:231 cc:3778
2011 Jeep Wrangler Unlimited 70th Anniversary 3.8L V6 cid:231 cc:3778
2011 Jeep Wrangler Unlimited Sport 3.8L V6 cid:231 cc:3778
2011 Jeep Wrangler Rubicon 3.8L V6 cid:231 cc:3778
2011 Jeep Wrangler Sahara 3.8L V6 cid:231 cc:3778
2011 Jeep Wrangler Sport 3.8L V6 cid:231 cc:3778
2011 Jeep Wrangler 70th Anniversary 3.8L V6 cid:231 cc:3778
2010 Jeep Wrangler
2009 Jeep Wrangler X 3.8L V6 cid:231 cc:3778
2009 Jeep Wrangler X S 3.8L V6 cid:231 cc:3778
2009 Jeep Wrangler Unlimited Sahara 3.8L V6 cid:231 cc:3778
2009 Jeep Wrangler Unlimited X 3.8L V6 cid:231 cc:3778
2009 Jeep Wrangler Sahara 3.8L V6 cid:231 cc:3778
2009 Jeep Wrangler Unlimited Rubicon 3.8L V6 cid:231 cc:3778
2009 Jeep Wrangler Rubicon 3.8L V6 cid:231 cc:3778
2008 Jeep Wrangler
2007 Jeep Wrangler

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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 Series	American Thunder
Exhaust Type	Single
Exit Position	Single Rear
Exit Style	Turn Down
Heat Shield Attached	No
Inlet Diameter	2.500 in.
Inlet Inside Diameter	2.500 in.
Material	Stainless Steel
Muffler Count	1
Muffler Part Number	Kit Only
Muffler Series	Super HP-2
Outlet Diameter	2.500 in.
Outlet Outside Diameter	3.000 in.
Single or Dual	Dual
Sound Level	Moderate
System Type	Cat Back
Tail Pipe Diameter	2.500 in.
Tip Diameter	3.000 in.
Tip Length	3.750 in.
Tip Quantity	1
Title	Flowmaster 817674 Cat-back System 409S - Single Rear Exit - American Thunder - Moderate Sound
Tubing Diameter	2.500 in.

Additional Documents

See what our community says about flowmaster products

Jeremy Henson

2019 Ram 1500

What made you choose this particular product?

sound,performance

What were you trying to accomplish by adding this product?

aggressive sound

Was it easy install? Any installation tips that will help others?

very easy.

Once you’ve had a chance to use the product, did it meet your expectations?

yes

View on Jeremy's build

102

Julio Morales

1966 Chevrolet C10 Pickup

What made you choose this particular product?

Sound

What were you trying to accomplish by adding this product?

Muscle sound

Was it easy install? Any installation tips that will help others?

Yes

Once you’ve had a chance to use the product, did it meet your expectations?

I think three inch would have a better sound.

View on Julio's build

1.0k

Mason W

2000 Toyota 4Runner

What made you choose this particular product?

Cheap and effecfive. Won’t wear out.

Is this your first time buying from this brand? Did you consider other brands?

No.

Was it easy to install? Any installation tips that will help others?

Cut out the old, clamped in the new.

Once you've had a chance to use the product, did it meet your expectations?

Works fine. Sounds decent.

View on Mason's build

294

Karl Palmer

2000 Ford F-150

What made you choose this particular product?

Price

What were you trying to accomplish by adding this product?

Lil more growl

Was it easy install? Any installation tips that will help others?

Professional

Once you’ve had a chance to use the product, did it meet your expectations?

Yes great healthy sound

View on Karl's build

550

Sam Jacobson

2013 Dodge Dart

What made you choose this particular product?

I wanted a little more rumble from the car at idle.

What were you trying to accomplish by adding this product?

Have more idle, replaced the Flowmaster dBX muffler for the HP-2 Shorty.

Once you’ve had a chance to use the product, did it meet your expectations?

With resonated tips added at the same time, I have enjoyed the sound of my exhaust more than I ever have! When the car is cold my car's exhaust pops louder than ever and I love it! It is a muffler rated way higher on the Flowmaster exhaust chart!

View on Sam's build

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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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- 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).

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