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Flowmaster 817891 American Thunder Cat-Back Exhaust System - with Black Ceramic Tips

(2019-2023 Chevrolet Silverado 1500; 2022 Chevrolet Silverado 1500 LTD; 2019-2023 GMC Sierra 1500; 2022 GMC Sierra 1500 Limited AT4/Denali/SLT)

Part of: Flowmaster American Thunder Cat-Back Exhaust System

Other options in this family: Flowmaster 17395 Flowmaster 817568 Flowmaster 17213 Flowmaster 818196 Flowmaster 818176

Manufacturer

Picture for manufacturer Flowmaster

Part Number

817891
6 reviews
Sale Price

$1,249.95

3 left at this price

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Usually delivered within 2 days

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Product Details

The Flowmaster American Thunder Cat-Back Exhaust System delivers enhanced performance and an aggressive exhaust note for enthusiasts seeking premium sound and style. This complete cat-back system features Flowmaster's signature 50 Series HD performance muffler design, engineered to reduce backpressure while producing a moderately aggressive exterior tone that announces your presence without being overbearing.

Key Features:

  • Full stainless steel construction for maximum durability and corrosion resistance
  • Large 50 Series HD performance muffler for improved flow and distinctive sound
  • Black ceramic coated quad tips (4.00-inch diameter) for aggressive styling
  • Removes factory resonators in tailpipes for enhanced exhaust flow
  • Uses factory hanger locations for straightforward bolt-on installation
  • Backed by Flowmaster's Lifetime Limited Warranty

This American Thunder system is designed as a direct-fit replacement that utilizes all existing mounting points, making installation straightforward with basic hand tools. The stainless steel construction ensures long-lasting performance in all weather conditions, while the black ceramic coated tips add a custom appearance that complements any vehicle style. Experience the perfect balance of performance gains, iconic Flowmaster sound, and head-turning aesthetics with this complete cat-back exhaust solution.

Products specifications

Fits

2019-2023 Chevrolet Silverado 1500; 2022 Chevrolet Silverado 1500 LTD; 2019-2023 GMC Sierra 1500; 2022 GMC Sierra 1500 Limited AT4/Denali/SLT

Inlet Inside Diameter

2.500 in.

Exit Position

Dual Out Rear

Material

Stainless Steel

Prop 65

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

California Proposition 65 Chemical Name

Nickel (Metallic)

California Proposition 65 Chemical Name

Chromium (hexavalent compounds)

Tip Diameter

4.000 in.

Tubing Diameter

2.500 in.

Tail Pipe Diameter

2.500 in.

Exhaust Type

Cat-Back

Brand

Flowmaster

Catalytic Converter Quantity

0

Category

Exhaust

Clamping Type

Flat Band

Clamps Included

Yes

Emission Code

5

Exhaust Series

American Thunder

Exhaust Tip Color

Black

Exhaust Tip Connection

Welded

Exhaust Tip Cut

Angled

Exhaust Tip Edge

Angle Cut

Exhaust Tip Finish

Black Ceramic Coating

Exhaust Tip Intercooled

No

Exhaust Tip Length

7.50

Exhaust Tip Material

304 Stainless Steel

Exhaust Tip Quantity

4

Exhaust Tip Resonated

No

Exhaust Tip Shape

Round

Exhaust Tip Wall

Single Wall

Exit Style

Dual Out Rear

Finish

Natural

Gasket Or Seal Included

No

Grade Type

Performance

Hangers Included

Yes

Inlet Type

Clamp-On

Mount Type

Uses Factory Hangers

Mounting Bracket Included

No

Muffler Body Material

409 Stainless Steel

Muffler Body Shape

Oval

Muffler Finish

Black High-Temperature Paint Finish

Muffler Flanged Inlet

No

Muffler Flanged Outlet

No

Muffler Inlet Connection

Slip-Fit

Muffler Outlet Connection

Slip-Fit

Muffler Outlet Quantity

2

Muffler Quantity

1

Muffler Series

50 Series HD

Muffler Type

Chambered

Pipe Color

Silver

Pipe Material

409 Stainless Steel

Product Type

Exhaust System

Sound Level

Aggressive / Moderate

Spring Bolt Kit Included

No

Sub Category

Exhaust and Tail Pipes

Tail Pipe Quantity

2

Tail Pipe Quantity

Dual

Tail Pipe Tapered Outlet

No

Type

Cat-Back

Valve Included

No

Valve Type

Not Applicable

Warning

California Proposition 65

Received the wrong order, ordered size 17 tires and was sent size 14 tires. Very fast shipping. Customer service representative was very helpful

Good

Nice

some items need better description. for instance, project mu rotors for a Mazda RX-7 (pt# PCRDZF3001) , am I paying for a single rotor or a pair when i purchase it? and uhh.. when i bought front shocks, i got a pair that was one model (white) FR and a pair that was black FL (front sides).... sell shocks by pairs, front pair, rear pair.... also, amke feedback relevant to the parts ordering, not just generalized to make yall sound good, which you are.

Poor packaging, item was dented by shipper and the quality of item was pretty flimsy.

Item arrived in good condition and in a timely manner.

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