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

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

American Thunder Kit

PART# 817428

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$775.95   Suggested Retail
$697.95   Your Price
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Fits 1999 to 2006 GM Silverado and Sierra truck on a 1/2 Ton chassis with a 4.8L or 5.3L engine using a single flanged catalytic converter, fits 2 and 4 wheel drive models with Extended Cab and short bed only.

Overview

For the person who is looking for a complete Cat-back dual exhaust system with a moderate sound level. With easy fit in mind, these systems are mandrel bent for maximum performance and include specially selected mufflers. This America Thunder system delivers a moderate interior and exterior tone and is suited to the enthusiast who wants to hear the rumble of their truck. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.

Features:

  • Dyno tuned for maximum performance
  • Includes hangers and hardware for easy installation
  • Moderate Sound exterior exhaust tone
  • Mandrel bent 16 gauge stainless steel tubing

Specs

2WD/4WD2WD/4WD
BrandFlowmaster
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Emission Code5
Exhaust SeriesAmerican Thunder
Exit PositionDual Out Rear / Dual Out Side
Heat ShieldNo
Inlet Diameter (in)3
MaterialStainless Steel
Muffler Part NumberKit Only
Muffler Quantity1
Muffler SeriesSuper 40 Series
Outlet Diameter (in)2.5
Product TypeExhaust Systems / Kits
Single DualDual
Sound LevelModerate Sound
System TypeCat-back System
Tip Diameter (in)3
Tip Quantity2
Tubing Diameter (in)2.5
Part Number817428

Emissions

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Tech Resources

Fits 1999 to 2006 GM Silverado and Sierra truck on a 1/2 Ton chassis with a 4.8L or 5.3L engine using a single flanged catalytic converter, fits 2 and 4 wheel drive models with Extended Cab and short bed only.

Applications

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    Some parts are not legal for use in California or other states with similar regulations.