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Flowmaster 817669 American Thunder Cat-Back Exhaust System

(2014-2018 Chevrolet Silverado 1500; 2019 Chevrolet Silverado 1500 LD; 2019 Chevrolet Silverado 1500 Legacy; 2014-2018 GMC Sierra 1500 + 2 more models)

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

817669
10 reviews
Sale Price

$1,249.95

3 left at this price

delivery box

Usually delivered within 2 days

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No Hassle Returns

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Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Flowmaster American Thunder Cat-Back Exhaust System delivers an aggressive exterior exhaust note with a moderate interior tone, making it ideal for enthusiasts who want performance sound without overwhelming cabin noise. This complete bolt-on system is engineered for a custom fit to your specific vehicle application.

Key Features:

  • Super 40 Series performance muffler with Delta Flow technology for maximum flow and power
  • 100% stainless steel construction for superior corrosion resistance and lasting durability
  • Aggressive exterior exhaust tone with moderate interior sound level
  • Custom-mandrel bent tubing designed for vehicle-specific fitment
  • All necessary hardware and detailed instructions included for straightforward installation
  • Backed by Flowmaster's Lifetime Limited Warranty

Flowmaster's Delta Flow technology uses a unique internal chamber design to reduce backpressure while producing the signature deep, aggressive tone that Flowmaster is known for. The Super 40 Series muffler provides excellent flow characteristics for horsepower and torque gains while maintaining streetable sound levels. All stainless steel components ensure this system will outlast mild steel alternatives, even in harsh climates and demanding conditions.

Products specifications

Fits

2014-2018 Chevrolet Silverado 1500; 2019 Chevrolet Silverado 1500 LD; 2019 Chevrolet Silverado 1500 Legacy; 2014-2018 GMC Sierra 1500; 2019 GMC Sierra 1500 Limited; 2014 Ram 2500

Outlet Outside Diameter

2.500 in.

Inlet Inside Diameter

3.000 in.

Tip Diameter

3.500 in.

System Type

Cat Back

Prop 65

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

California Proposition 65 Chemical Name 2

Chromium (hexavalent compounds)

California Proposition 65 Chemical Name 1

Nickel (metallic)

California Proposition 65 Chemical Name

Nickel (Metallic)

California Proposition 65 Chemical Name

Chromium (hexavalent compounds)

Exit Position

Dual Rear Same Side

Heat Shield Attached

No

Material

Stainless Steel

Muffler Count

1

Tubing Diameter

2.500 in.

Outlet Diameter

2.500 in.

Tip Quantity

2

Tail Pipe Diameter

2.500 in.

Exhaust Type

Dual

Single or Dual

Dual

Tip Length

13.000 in.

Title

Flowmaster 817669 Cat-back System 409S - Dual Rear/Side Exit - American Thunder - Aggressive Sound

Brand

Flowmaster

Catalytic Converter Quantity

0

Category

Exhaust

Clamping Type

Flat Band

Clamps Included

Yes

Drive

2WD

Drive

4WD

Emission Code

5

Exhaust Series

American Thunder

Exhaust Tip Color

Silver

Exhaust Tip Connection

Clamp-On

Exhaust Tip Cut

Angled

Exhaust Tip Edge

Angle Cut

Exhaust Tip Finish

Polished

Exhaust Tip Intercooled

No

Exhaust Tip Material

304 Stainless Steel

Exhaust Tip Quantity

2

Exhaust Tip Resonated

No

Exhaust Tip Shape

Round

Exhaust Tip Wall

Double Wall

Exit Style

Dual Out Side

Exit Style

Dual Out Rear

Finish

Natural

Gasket Or Seal Included

No

Grade Type

Performance

Hangers Included

Yes

Heat Shield Included

No

Inlet Diameter

3.00

Inlet Type

Clamp-On

Mounting Bracket Included

Yes

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 part number

Kit Only

Muffler Quantity

1

Muffler Series

Super 40 Series

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

Dual

Tail Pipe Quantity

2

Tail Pipe Tapered Outlet

No

Type

Cat-Back

Valve Included

No

Valve Type

Not Applicable

Warning

California Proposition 65

Very good give you 5 stars

Great so far. I'll know better once I receive and get to use it.

Great Prices, and based on the reviews I hope the shipping is as fast as everyone says.

Very easy to use.

The ordering process was very simple. Also, I've searched the internet and they defiantly have the best prices.

Happy with the prices less than half the price of local parts. Quick easy checkout.

Easy to order with the Amazon connectivity

This was my first order with Autoplicity. I was pleasantly surprised when my order showed up quickly and was exactly what I wanted. I will be buying from this company again. Thanks for the quick service and fair pricing.

Phone service was quick and personable wanting to solve my problem immediately. The weight of my package was wrong causing shipping to be $300 to ship a gas can but was fixed right away. Prices were great! I would purchase through them again!

Prompt shipping and good price. Was one of the few online retailers that had the item I was looking for. Would buy from again.

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