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Flowmaster 817664 American Thunder Cat-back Exhaust for 2009-2020 Toyota Tundra

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  • Regular price $1,171.50 CAD
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The American Thunder® cat-back exhaust system for 2009-2020 Toyota Tundra trucks with the 4.6L, 4.7L or 5.7L engine is perfect for the person looking for an deep aggressive exterior tone with a mellow growl inside the truck and all of the performance benefits you expect from Flowmaster®. This bolt-on emissions-legal system features all stainless steel construction, a specially designed dual inlet Super 40® Series muffler flowing into dual 2.50-inch mandrel-bent tailpipes for maximum performance with a deep tone. The kit comes with two sets of final pipes for either a dual out the back look or dual out behind the rear tires, which is beneficial for towing. The tailpipes are finished off with a pair of 3.50-inch double wall polished stainless steel tips. The system includes all necessary parts and hardware for easy at home installation. Note: Fits 2/4 wheel drive. Does not fit regular cab/short bed or double cab/long bed models. Only fits 2009 models built after 08/2008.


  • Large 3.50-inch Polished 304 Stainless Steel Tips
  • Side Exit Tailpipes Ideal for Towing Applications
  • Mandrel-bent Stainless Steel Construction
  • Super 40 Series Performance Muffler
  • Deep Aggressive Performance Tone
  • Uses the Factory Hanger Locations
  • Multiple Exit Styles Provided in Kit
  • Includes all Necessary Hardware
  • Clears the Factory Spare Tire
  • Lifetime Limited Warranty
  • Easy Installation
Brand Flowmaster
Emission Code 5
Exhaust Series American Thunder
Exit Position Dual Out Rear / Dual Out Side
Heat Shield No
Inlet Diameter (in) 2.5
Material 409 Stainless Steel
Muffler Part Number Kit Only
Muffler Series 40 Series Big Block
Outlet Diameter (in) 2.5
Product Type Exhaust System
Single Dual Dual
Sound Level Aggressive
System Type Cat-back
Tip Diameter (in) 3.5
Tip Length (in) 13
Tip Quantity 2
Tubing Diameter (in) 2.5
California Proposition 65 Chemical Name Chromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 Required Yes
Part Number 817664