cat-back

Flowmaster 817640 - Force II Cat Back System

Name: Flowmaster 817640 - Force II Cat Back System (817640)
Brand: Flowmaster
SKU: 5b000285259b31d67f8870a2
Price: 682.95 USD
Availability: InStock

$682.95

$759.00

You save: $76.05 (10%) off MSRP

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This part fits

2015 Chevrolet Silverado 2500 HD LTZ 6.0L V8 cid:364 cc:5967 Extended Cab Pickup 78.8 in. bed
2015 GMC Sierra 2500 HD Base 6.0L V8 cid:364 cc:5967 Extended Cab Pickup 78.8 in. bed
2015 GMC Sierra 2500 HD SLT 6.0L V8 cid:364 cc:5967 Extended Cab Pickup 78.8 in. bed
2015 GMC Sierra 2500 HD SLE 6.0L V8 cid:364 cc:5967 Extended Cab Pickup 78.8 in. bed
2015 Chevrolet Silverado 2500 HD WT 6.0L V8 cid:364 cc:5967 Extended Cab Pickup 78.8 in. bed
2015 Chevrolet Silverado 2500 HD LT 6.0L V8 cid:364 cc:5967 Extended Cab Pickup 78.8 in. bed
2013 Chevrolet Silverado 3500 HD 6.0L V8 cid:364 cc:5967 Crew Cab Pickup 78.8 in. bed
2013 GMC Sierra 3500 HD 6.0L V8 cid:364 cc:5967 Crew Cab Pickup 78.8 in. bed
2013 GMC Sierra 2500 HD SLT 6.0L V8 cid:364 cc:5967 Extended Cab Pickup 78.8 in. bed
2013 GMC Sierra 2500 HD SLE 6.0L V8 cid:364 cc:5967 Extended Cab Pickup 78.8 in. bed
2013 Chevrolet Silverado 2500 HD 6.0L V8 cid:364 cc:5967 Extended Cab Pickup 78.8 in. bed
2013 GMC Sierra 2500 HD WT 6.0L V8 cid:364 cc:5967 Extended Cab Pickup 78.8 in. bed
2012 GMC Sierra 2500 HD WT 6.0L V8 cid:364 cc:5967 Extended Cab Pickup 78.8 in. bed
2012 GMC Sierra 3500 HD 6.0L V8 cid:364 cc:5967 Crew Cab Pickup 78.8 in. bed
2012 GMC Sierra 2500 HD SLE 6.0L V8 cid:364 cc:5967 Extended Cab Pickup 78.8 in. bed
2012 GMC Sierra 2500 HD SLT 6.0L V8 cid:364 cc:5967 Extended Cab Pickup 78.8 in. bed
2012 Chevrolet Silverado 2500 HD 6.0L V8 cid:364 cc:5967 Extended Cab Pickup 78.8 in. bed
2012 Chevrolet Silverado 3500 HD 6.0L V8 cid:364 cc:5967 Crew Cab Pickup 78.8 in. bed
2011 Chevrolet Silverado 3500 HD 6.0L V8 cid:364 cc:5967 Crew Cab Pickup 78.8 in. bed
2011 GMC Sierra 2500 HD SLE 6.0L V8 cid:364 cc:5967 Extended Cab Pickup 78.8 in. bed
2011 GMC Sierra 2500 HD SLT 6.0L V8 cid:364 cc:5967 Extended Cab Pickup 78.8 in. bed
2011 GMC Sierra 2500 HD WT 6.0L V8 cid:364 cc:5967 Extended Cab Pickup 78.8 in. bed
2011 Chevrolet Silverado 2500 HD 6.0L V8 cid:364 cc:5967 Extended Cab Pickup 78.8 in. bed

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Authorized Dealer

About this product

Part #: 817640

Flowmaster Force II cat-back exhaust system for the 2011 to 2015 GM 2500HD and 3500HD extended cab and short bed truck is perfect for the person looking for mild to moderate sound levels with all of the performance benefits that you would expect from Flowmaster. This bolt on emissions legal system for the 6.0L V8 gasoline engines features a 50 Series Big Block muffler, mandrel bent 3.50 inch stainless steel tubing, and a polished 4.00 inch stainless steel tip with Flowmaster's logo embossed into it. 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 Pipe Bend Type	Assorted
Exhaust Pipe Max Diameter	2.500 in.
Exhaust Type	Single
Exit Position	Single Side
Exit Style	Straight
Heat Shield Attached	No
Inlet Diameter	3.500 in.
Inlet Inside Diameter	3.500 in.
Material	Stainless Steel
Muffler Count	1
Muffler Part Number	Kit Only
Muffler Series	50 Series Big Block
Outlet Diameter	3.500 in.
Outlet Outside Diameter	4.000 in.
Single or Dual	Single
Sound Level	Mild/Moderate
System Type	Cat Back
Tail Pipe Diameter	3.500 in.
Tip Diameter	4.000 in.
Tip Length	10.000 in.
Tip Quantity	1
Title	Flowmaster 817640 Cat-back System 409S - Single Side Exit - Force II - Mild/Moderate Sound
Tubing Diameter	3.500 in.

Additional Documents

See what our community says about flowmaster products

132

Tyler Allen

2001 Ford Mustang

What made you choose this particular product?

Classic Flowmaster sound.

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

No, installed on other cars as well

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

Nice sound and not too heavy on the wallet.

View on Tyler's build

653

Michael Stone

2000 Jeep Grand Cherokee

What made you choose this particular product?

The sound output. Just right

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

Yes, No.

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

Vary easy and light weight. Be sure to install in in the right orientation or you will need to take it off and redo it. (dont ask)

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

Exceeded them!

View on Michael's build

111

Donte Marice

2000 Chevrolet Monte Carlo

What made you choose this particular product?

It gives Chevy 3.8 liter a better exhaust sound

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

I consider spintech mufflers

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

They were just welded in place

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

yes

View on Donte's build

209

DUCK4TWENTY 626

2000 Chevrolet 2001-10-01T07:00:00.000Z

What made you choose this particular product?

upgrade

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

yes

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

yes if you have a welder

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

yes

View on DUCK4TWENTY's build

Bailey Steele

2015 Volkswagen Golf GTI

What made you choose this particular product?

Came with the car

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

Yes

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

Don't know

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

Never had any to begin with

Any additional comments?

A little highway drone

View on Bailey's build

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WARNING: Cancer and Reproductive Harm www.p65warnings.cs.gov

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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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