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Flowmaster 817428 American Thunder Cat-Back Exhaust System - Stainless Steel

(1999-2007 Chevrolet Silverado 1500; 2007 Chevrolet Silverado 1500 Classic; 1999-2007 GMC Sierra 1500; 2007 GMC Sierra 1500 Classic)

Manufacturer

Picture for manufacturer Flowmaster

Part Number

817428
6 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 817428 American Thunder Cat-Back Exhaust System delivers an aggressive performance sound and improved exhaust flow for your vehicle. This complete cat-back system features mandrel-bent 16-gauge stainless steel tubing that reduces backpressure and increases horsepower while providing long-lasting corrosion resistance.

Key Features:

  • Super 40 Series performance muffler for moderate to aggressive exterior exhaust tone
  • Mandrel-bent 16-gauge stainless steel tubing for maximum flow and durability
  • Connects directly after the factory catalytic converter for straightforward installation
  • Uses factory hanger locations for a precise, OE-quality fit
  • Includes all necessary hangers and hardware for easy bolt-on installation
  • Backed by Flowmaster's Lifetime Limited Warranty

This American Thunder system is engineered to deliver Flowmaster's signature deep, aggressive tone while maintaining reasonable interior sound levels. The mandrel-bent tubing maintains consistent pipe diameter throughout each bend, eliminating flow restrictions found in crush-bent systems. Installation is straightforward using factory mounting points and the included hardware, with no welding or modifications required.

Products specifications

Fits

1999-2007 Chevrolet Silverado 1500; 2007 Chevrolet Silverado 1500 Classic; 1999-2007 GMC Sierra 1500; 2007 GMC Sierra 1500 Classic

Inlet Inside Diameter

2.500 in.

Outlet Outside Diameter

2.500 in.

Tip Diameter

3.000 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

Chromium (hexavalent compounds)

California Proposition 65 Chemical Name

Nickel (Metallic)

Exit Position

Dual Rear Same Side

Heat Shield Attached

No

Material

Stainless Steel

Muffler Count

1

Exhaust Type

Single

Tubing Diameter

2.500 in.

Outlet Diameter

2.500 in.

Tip Quantity

2

Tail Pipe Diameter

2.500 in.

Single or Dual

Dual

Title

Flowmaster 817428 Cat-back System 409S - Dual Rear/Side Exit - American Thunder - Moderate Sound

Brand

Flowmaster

Catalytic Converter Quantity

0

Category

Exhaust

Clamping Type

Flat Band

Clamps Included

Yes

Drive

4WD

Drive

2WD

Emission Code

5

Exhaust Series

American Thunder

Exhaust Tip Color

Silver

Exhaust Tip Connection

Clamp-On

Exhaust Tip Cut

Angled

Exhaust Tip Edge

Rolled 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

Single 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

Flanged

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

2

Tail Pipe Quantity

Dual

Tail Pipe Tapered Outlet

No

Type

Cat-Back

Valve Included

No

Valve Type

Not Applicable

Warning

California Proposition 65

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i was skeptical about this site but after reading the reviews and them having the lowest price i could find for my part i pulled the trigger and wasn't disappointed. fast shipping and low prices with great customer service will shop with them again if they have what im looking for.

Quick shipping, good communication, low price, would purchase again from this company.

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