cat-back

Flowmaster 817674 - American Thunder Cat Back Exhaust System

Name: Flowmaster 817674 - American Thunder Cat Back Exhaust System (817674)
Brand: Flowmaster
SKU: 5b00028d259b31d67f887d8f
Price: 457.95 USD
Availability: InStock
Rating: 5 (1 reviews)

(1)

$457.95

$508.95

You save: $51.00 (10%) off MSRP

Free shipping & easy returns on this item!

Unavailable

This product is currently unavailable.

1 of 3

Check to see if this fits your vehicle

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

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 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

217

Michael Caffrey

2000 Chevrolet S-10

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

1.5k

Cameron Alexander

2004 Mercury Grand Marquis

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

239

Robert Cochems

2014 Chevrolet Camaro

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

233

Travis N

2004 Chevrolet Tahoe

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

Yes

View on Travis's build

143

Jacob Heeren

2002 Ford Mustang

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

Shop all Flowmaster Exhaust

MFR# 817478

Flowmaster - Force II Cat Back System

Flowmaster

$729.95$811.95

Save $82.00 (10%) off MSRP

MFR# 817479

Flowmaster - American Thunder Cat Back Exhaust System

Flowmaster

$799.95$888.95

Save $89.00 (10%) off MSRP

MFR# 817480

Flowmaster - American Thunder Cat Back Exhaust System

Flowmaster

$740.95$823.95

Save $83.00 (10%) off MSRP

WARNING: 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.

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

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).

Email Us

orders@wheelwell.com