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Fitment

YearMakeModelSub Model
2011-2014GMCSierra 2500 HDWT
2011-2019GMCSierra 3500 HDDenali
2011-2019GMCSierra 2500 HDDenali
2011-2014GMCSierra 3500 HDWT
2011-2019ChevroletSilverado 2500 HDLT
2011-2019ChevroletSilverado 2500 HDWT
2011-2019ChevroletSilverado 2500 HDLTZ
2011-2019GMCSierra 2500 HDSLE
2011-2019GMCSierra 3500 HDSLE
2011-2019GMCSierra 3500 HDSLT
2011-2019GMCSierra 2500 HDSLT
2015-2019GMCSierra 2500 HD
2015-2019ChevroletSilverado 2500 HDHigh Country
2015-2018GMCSierra 3500 HD
2016-2019ChevroletSilverado 3500 HDLTZ
2016-2019ChevroletSilverado 3500 HDLT
2016-2019ChevroletSilverado 3500 HDHigh Country
2016-2019ChevroletSilverado 3500 HDWT

Quick Specs

  • Country of Origin: USA
  • Sold As: Kit
  • Availability: Available
  • Exhaust Type: Cat Back
  • Exit Style: Dual Out Side Dual Out Rear
  • Mount Style: Clamp-On
  • Shape: Oval
  • Part Number : 817541

Important Notes

ATTENTION STATE OF CALIFORNIA CONSUMERS

WARNING: Cancer and reproductive harm –

American Thunder Cat-Back Exhaust System Fits 2011-2019 Silverado/Sierra 2500Hd/3500Hd With 6.0L Engine Aggressive To Moderate Sound Flowmaster

Fits 2011-2014 GMC Sierra 2500 HD WT 2011-2019 3500 Denali Chevrolet Silverado LT LTZ SLE SLT 2015-2019 High Country 2015-2018 2016-2019
4.9257075471698 848 5
98.514150943396%
4.9/5 out of 848 Company Reviews. Rating:
American Thunder Cat-Back Exhaust System Fits 2011-2019 Silverado/Sierra 2500Hd/3500Hd With 6.0L Engine Aggressive To Moderate Sound Flowmaster
1249.95In stock
Fits 2011-2014 GMC Sierra 2500 HD WT 2011-2019 3500 Denali Chevrolet Silverado LT LTZ SLE SLT 2015-2019 High Country 2015-2018 2016-2019
  • Brand : Flowmaster
  • SKU : 817541-BDXN
  • Part Number : 817541
$1,249.95

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Product Details

The new Flowmaster American Thunder Cat-back exhaust system for 2011-2019 Chevy Silverado and GMC Sierra 2500HD/3500HD trucks with 6.0L, is perfect for the person looking for a moderate to aggressive sound level inside and outside of the truck, with all of the performance benefits that you would expect from Flowmaster. Designed for the Crew Cab, Standard Bed (6.5 ft.) models only, this bolt-on, emissions-legal system features a stainless steel 50 Series HD muffler and large dual 3.00-inch stainless steel mandrel bent tailpipes that can be configured to exit either dual out the sides, or dual straight out the back.

The system is finished off with beautifully polished 4.00-inch stainless steel tips and is covered by our Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation. Notes: Fits Crew Cab with 6.5' bed length. 153.7 wheelbase only.

  • Uses the Factory Hanger Locations for Easy Installation
  • 50 Series HD Muffler with Delta Flow Technology
  • Multiple Tailpipe Exits Provided in Kit
  • Large 3.00-inch Dual Tailpipes
  • Stainless Steel Construction
  • Lifetime Limited Warranty
  • Flowmaster Quality
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