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Fitment

YearMakeModelSub Model
2019-2023GMCSierra 1500AT4
2019-2023ChevroletSilverado 1500LTZ
2019-2023GMCSierra 1500SLT
2019-2023GMCSierra 1500Denali
2019-2023ChevroletSilverado 1500High Country
2020-2021ChevroletSilverado 1500Custom Trail Boss
2020-2023ChevroletSilverado 1500RST
2020-2023ChevroletSilverado 1500LT Trail Boss
2022ChevroletSilverado 1500 LTDRST
2022ChevroletSilverado 1500 LTDLTZ
2022ChevroletSilverado 1500 LTDHigh Country
2022ChevroletSilverado 1500 LTDLT Trail Boss
2022GMCSierra 1500 LimitedAT4
2022-2023GMCSierra 1500Denali Ultimate
2022GMCSierra 1500 LimitedDenali
2022ChevroletSilverado 1500 LTDCustom Trail Boss
2022GMCSierra 1500 LimitedSLT

Quick Specs

  • Country of Origin: USA
  • Sold As: Kit
  • Availability: Available
  • Exhaust Type: Cat Back
  • Exit Style: Dual Out Rear
  • Mount Style: Welded
  • Shape: Oval
  • Part Number : 817891

Important Notes

ATTENTION STATE OF CALIFORNIA CONSUMERS

WARNING: Cancer and reproductive harm –

American Thunder Cat-Back Exhaust System Fits 2019-2023 Silverado/Sierra 1500 With 6.2L Engine Aggressive To Moderate Sound Flowmaster

Fits 2019-2023 GMC Sierra 1500 AT4 Chevrolet Silverado LTZ SLT Denali High Country 2020-2021 Custom Trail Boss 2020-2023 RST LT 2022 LTD Limited 2022-2023 Ultimate
4.9257075471698 848 5
98.514150943396%
4.9/5 out of 848 Company Reviews. Rating:
American Thunder Cat-Back Exhaust System Fits 2019-2023 Silverado/Sierra 1500 With 6.2L Engine Aggressive To Moderate Sound Flowmaster
1149.95In stock
Fits 2019-2023 GMC Sierra 1500 AT4 Chevrolet Silverado LTZ SLT Denali High Country 2020-2021 Custom Trail Boss 2020-2023 RST LT 2022 LTD Limited 2022-2023 Ultimate
  • Brand : Flowmaster
  • SKU : 817891-BDXN
  • Part Number : 817891
$1,149.95

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Product Details

This Flowmaster American Thunder cat-back dual exhaust system for the 2019-2023 GM Silverado/Sierra 1500 (new body style) trucks with the 6.2L engine and factory dual exhaust, 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 and factory dual exhaust tailpipes.

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 exhaust 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-inch and 157-inch wheelbases with 6.2L engine and factory dual tailpipes. Only fits models with factory bumper cutouts.

  • Large 4.00-inch Black Ceramic Coated Tips
  • Removes Factory Resonators in Tailpipes
  • Large 50 Series HD Performance Muffler
  • Moderately Aggressive Exterior Tone
  • Black Ceramic Coated Quad Tips
  • Full Stainless Steel Construction
  • Uses Factory Hanger Locations
  • Lifetime Limited Warranty
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