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817664 - Cat-back System 409S - Dual Rear/Side Exit - American Thunder - Aggressive Sound - default Image
817664 - Cat-back System 409S - Dual Rear/Side Exit - American Thunder - Aggressive Sound - additional Image
817664 - Cat-back System 409S - Dual Rear/Side Exit - American Thunder - Aggressive Sound - additional Image
2009-19 Toyota Tundra 4.6L, 5.7L - American Thunder Cat-back Exhaust System 817664YouTube Button

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

American Thunder Kit

PART# 817664

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$933.95   Suggested Retail
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Fits 2010-2019 Toyota Tundra with 4.6L or 5.7L V8 engine. 145" Wheelbase Models Only.

Overview

Flowmaster's American Thunder cat-back exhaust system for the 2009-2019 Toyota Tundra pickup trucks with the 5.7L or 4.6L V8 engines is perfect for the person looking for an aggressive sound level with all of the performance benefits that you would expect from Flowmaster. This DOR/DOS (Dual Out Rear, Dual Out Side) bolt on 409S stainless steel system features dual 2.50 in. tailpipes and 3.50 in. polished stainless steel tips. This system is designed to fit regular cab/long bed, double cab/short bed and CrewMax models. The exhaust system is covered by Flowmaster's Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.

Features:

  • Lifetime Limited Warranty
  • Aggressive Sound Performance Tone
  • Multiple Exit Styles Provided in Kit
  • Stainless Steel Construction

Specs

2WD/4WDRWD/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)2.5
MaterialStainless Steel
Muffler Part NumberKit Only
Muffler Series40 Series Big Block
Outlet Diameter (in)2.5
Product TypeExhaust Systems / Kits
Single DualDual
Sound LevelAggressive Sound
System TypeCat-back System
Tip Diameter (in)3.5
Tip Length (in)13
Tip Quantity2
Tubing Diameter (in)2.5
Part Number817664

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 2010-2019 Toyota Tundra with 4.6L or 5.7L V8 engine. 145" Wheelbase Models Only.

Applications

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