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1998-03 Ford F-150 4.6L, 5.4L - American Thunder Cat-back Exhaust System 817663YouTube Button

Flowmaster American Thunder Cat-back Exhaust System

1998-2003 Ford F-150 with 4.6L or 5.4L engine. Fits both 2/4-wheel drive models.

PART# 817663

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$752.95   Suggested Retail
$609.26   Holleydays Price
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Fits 1998-2003 Ford F-150 with 4.6L or 5.4L engine. Fits both 2/4-wheel drive models.

Overview

Flowmaster's American Thunder cat-back exhaust system for the 1998-2003 Ford F-150 pickup truck 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 for the 4.6L and 5.4L V8 engines features dual 2.50" tailpipes and 3.50" polished stainless steel tips. This system is designed to fit all wheelbases and uses Flowmaster's Super 40 Series muffler. 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 Quantity1
Muffler SeriesSuper 40 Series
Outlet Diameter (in)2.5
Product TypeExhaust System
Single DualDual
Sound LevelAggressive Sound
System TypeCat-back
Tip Diameter (in)3.5
Tip Length (in)13
Tip Quantity2
Tubing Diameter (in)2.5
Part Number817663

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 1998-2003 Ford F-150 with 4.6L or 5.4L engine. Fits both 2/4-wheel drive models.

Applications

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