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Flowmaster 817602 American Thunder Cat-Back Exhaust System

(2011-2018 Chevrolet Silverado 1500; 2011-2018 GMC Sierra 1500)

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

817602
11 reviews
Sale Price

$1,171.95

In Stock (10+)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Flowmaster 817602 American Thunder Cat-Back Exhaust System delivers aggressive exterior sound with a moderate interior tone, engineered specifically for performance truck enthusiasts. This complete bolt-on system is designed to enhance acceleration, passing power, and fuel efficiency through advanced exhaust technology.

Key Features:

  • 50 Series HD performance muffler with 4.00-inch internals and built-in tuned resonance chamber to minimize interior drone
  • 3.50-inch mandrel-bent inlet pipe for superior exhaust gas flow
  • Dual 2.50-inch mandrel-bent tailpipes for maximum performance
  • Large 3.50-inch polished stainless steel logo-embossed tips
  • 409S stainless steel construction for durability and corrosion resistance
  • Dyno-tuned for maximum performance gains
  • Uses factory hanger locations for straightforward installation
  • Clears factory spare tire location

Dual Exit Options: This versatile system gives you two tailpipe exit configurations—either out each side behind the rear tires for towing applications, or straight-out under the rear bumper for an aggressive appearance. All necessary hardware and installation components are included, and the system is backed by Flowmaster's Lifetime Limited Warranty.

Products specifications

Fits

2011-2018 Chevrolet Silverado 1500; 2011-2018 GMC Sierra 1500

Brand

Flowmaster

Prop 65

Yes

California Proposition 65 Chemical Name

Nickel (Metallic)

California Proposition 65 Chemical Name

Chromium (hexavalent compounds)

Catalytic Converter Included

No

Catalytic Converter Quantity

0

Category

Exhaust

Clamping Type

Flat Band

Clamps Included

Yes

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 Type

Clamp-On

Mount Type

Uses Factory Hangers

Mounting Bracket Included

Yes

Muffler Body Material

409 Stainless Steel

Muffler Body Shape

Oval

Muffler Finish

Natural

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

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

Tip Logo

Embossed

Type

Cat-Back

Valve Included

No

Valve Type

Not Applicable

Warning

California Proposition 65

Fast and easy

Easy check out process-found the part I needed in stock.

easy order and great price! quicker delivery than expected+++++

easy to navigate site. Part ordered worked great

So far so good. Just ordered.

Found exactly what I was looking, at a great price, would definitely order again!

Great product, fast shipping...will do business with again! Thank you!

Best price on a timken wheel bearing I could find. I will be doing business with them again.

great!

What a selection of items for your vehicle. When I called to confirm this company could actually ship an item others couldn't. Parts were available at the right price shipped quickly from one of there many warehouses.(not to mention the professional service from person who answered call) No waiting for this etailer. RECOMMENDED!Buy from tnis company!

Easy to use website. The belts I ordered didn't have a picture but I knwew what I was looking for.

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