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Flowmaster 817891 - American Thunder Cat Back Exhaust System

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$866.66

$1,070.00

You save: $203.34 (19%) off MSRP

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This part fits

  1. 2019 Chevrolet Silverado 1500 High Country 6.2L V8 cid:376 cc:6162 69.9 in. bed
  2. 2019 Chevrolet Silverado 1500 High Country 6.2L V8 cid:376 cc:6162 79.4 in. bed
  3. 2019 GMC Sierra 1500 Denali 6.2L V8 cid:376 cc:6162 69.9 in. bed
  4. 2019 GMC Sierra 1500 AT4 6.2L V8 cid:376 cc:6162 79.4 in. bed
  5. 2019 GMC Sierra 1500 Denali 6.2L V8 cid:376 cc:6162 79.4 in. bed
  6. 2019 GMC Sierra 1500 SLT 6.2L V8 cid:376 cc:6162 69.9 in. bed
  7. 2019 GMC Sierra 1500 SLT 6.2L V8 cid:376 cc:6162 79.4 in. bed
  8. 2019 Chevrolet Silverado 1500 LTZ 6.2L V8 cid:376 cc:6162 69.9 in. bed
  9. 2019 Chevrolet Silverado 1500 LTZ 6.2L V8 cid:376 cc:6162 79.4 in. bed
  10. 2019 GMC Sierra 1500 AT4 6.2L V8 cid:376 cc:6162 69.9 in. bed
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About this product

Part #: 817891

Flowmaster's American Thunder cat-back dual exhaust system for the 2019 GM Silverado/Sierra 1500 (new body style) trucks with the 6.2L engine is perfect for the person looking for an aggressive sound level outside the truck, with a moderate interior tone and all the performance benefits you would expect from Flowmaster. This emissions-legal bolt-on system fits all 6.2L Crew Cab with 5.5-ft and 6.5-ft beds, and all Double Cab with a 6.5-ft bed with factory dual exhaust. Features include a mandrel-bent 3.50-inch stainless steel inlet tube flowing into a single 50 Series HD muffler, dual 2.50-inch mandrel-bent stainless tailpipes replacing the factory resonators and giving your truck some growl. The tailpipes are finished off with quad 4.00-inch black ceramic coated stainless steel tips that exit in place of the factory bolt-on trim bezels giving your truck an aggressive performance style and setting your truck apart from others, sending the message that you would rather lead than follow. Designed for an easy fit, this system includes all necessary parts, detailed instructions and hardware for an easy at home installation. Notes: Fits 147" and 157" wheelbases with 6.2L and Factory Dual Exhaust.

More Details

Exhaust TypeCat-Back
Exit PositionDual Out Rear
Inlet Inside Diameter2.500 in.
MaterialStainless Steel
Tail Pipe Diameter2.500 in.
Tubing Diameter2.500 in.
Additional Documents
  1. Technical Drawingjpg

See what our community says about flowmaster products

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?
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
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 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
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?
Bought mandrel bends, muffler and pipe from Jegs. Can't beat their pricing. They also sell the pre-bent Flowmaster tail pipe sections, which are worth the money.
Any additional comments?
Nice quiet muffler, what I was looking for.
View on Craig'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?
It was on the car when I got it
View on Alan'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?
Deep quality sound.
Is this your first time buying from this brand? Did you consider other brands?
No. And yes I considered a few different brands.
Was it easy to install? Any installation tips that will help others?
Yes.
Once you've had a chance to use the product, did it meet your expectations?
A little on the quiet sid but good sound
View on Josh'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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