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817680 - Cat-back System - DOR/S - American Thunder - Moderate/Aggressive Sound - default Image
817680 - Cat-back System - DOR/S - American Thunder - Moderate/Aggressive Sound - additional Image
817680 - Cat-back System - DOR/S - American Thunder - Moderate/Aggressive Sound - additional Image
2007-13 GM Silverado/Sierra 1500 5.3L - American Thunder Cat-back Exhaust 817680YouTube Button

Cat-back System - DOR/S - American Thunder - Moderate/Aggressive Sound

American Thunder Kit

PART# 817680

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Fits 2009 to 2013 Silverado and Sierra 1500 with a 5.3L Flex Fuel V8 engine and fits the Crew Cab and Extra Cab configurations. Also fits 2007 to 2008 Chevrolet Silverado and GMC Sierra 1500 with a 4.8L or 5.3L.

Overview

Flowmaster's American Thunder cat-back exhaust system for the 2007-2013 GM 1500 trucks is perfect for the person looking for moderate to aggressive sound levels both inside and outside of the truck, with all of the performance benefits that you would expect from Flowmaster. This bolt-on DOR/DOS (Dual Out Rear or Dual Out Side) emissions-legal system is for Extra Cab/Standard Bed and Crew Cab/Short Bed models only, with the 5.3L gas engine (and 07-08 4.8L) and features a stainless steel Super 40 Series muffler and dual mandrel bent 2.50 in. stainless steel tailpipes. The system is finished off with polished 3.50 in. double wall stainless steel tips. 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
  • Patented Delta Flow Technology
  • Dyno Tuned For Maximum Performance
  • Stainless Steel Construction

Specs

2WD/4WDRWD/4WD
BrandFlowmaster
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Catalytic Converter IncludedNo
ColorBlack
Emission Code5
Exhaust SeriesAmerican Thunder
Exit PositionDual Out Rear / Dual Out Side
Heat ShieldNo
Inlet Diameter (in)3
MaterialStainless Steel
Mount TypeFlanged
Muffler Part NumberKit Only
Muffler Quantity1
Muffler SeriesSuper 40 Series
Muffler TypeWelded Baffle
Outlet Diameter (in)2.5
Product TypeExhaust Systems / Kits
ShapeOval
Single DualDual
Sound LevelModerate/Aggressive Sound
System TypeCat-back System
Tip CutAngle
Tip Diameter (in)3.5
Tip Edge StyleCut
Tip FinishPolished
Tip Length (in)13
Tip LogoEmbossed
Tip MaterialStainless Steel
Tip Quantity2
Tip ShapeRound
Tip StyleDouble Wall
Tubing Diameter (in)2.5
Part Number817680

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 2009 to 2013 Silverado and Sierra 1500 with a 5.3L Flex Fuel V8 engine and fits the Crew Cab and Extra Cab configurations. Also fits 2007 to 2008 Chevrolet Silverado and GMC Sierra 1500 with a 4.8L or 5.3L.

Applications

Reviews

    *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

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