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2013-19 Subaru BRZ, Scion FR-S & Toyota 86 2.0L - American Thunder Cat-back Exhaust System 817596YouTube Button

Flowmaster American Thunder Cat-back Exhaust System

2013-2016 Scion FR-S, 2017-20 Toyota 86 and 2013-2020 Subaru BRZ with 2.0L engine.

PART# 817596

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Aggressive to moderate sound


The Scion FR-S and Subaru BRZ are two of the most exciting sports cars of recent day. With their aggressive styling, rear-wheel drive and the 2.0-liter boxer engine delivering 200HP, but the stock exhaust sounds like half that. Flowmaster has the answer to make the car sound like it performs, with our American Thunder stainless steel cat-back exhaust featuring a direct bolt-on 2.50-inch mandrel-bent inlet pipe flowing into the 80 Series Cross-flow performance muffler. The system provides dual 2.50-inch tailpipes that end with large double wall 4.00-inch polished stainless tips exiting out the factory cutouts. As an American Thunder system, it delivers a deep, aggressive performance tone outside with a moderate interior sound that most any enthusiast will enjoy, along with the performance gains you demand from Flowmaster. Includes all necessary parts, hardware, and instructions for an easy bolt-on installation. Covered by Flowmasters Lifetime Limited Warranty.


  • Deep Refined Performance Sound
  • Full Stainless Steel Construction
  • Lifetime Limited Warranty
  • Easy Bolt-on System


Emission Code5
Exhaust SeriesAmerican Thunder
Exit PositionDual Out Rear
Heat ShieldNo
Inlet Diameter (in)2.5
Material409 Stainless Steel
Muffler Part NumberKit Only
Muffler Quantity1
Muffler Series80 Series Crossflow
Outlet Diameter (in)2.5
Product TypeExhaust System
Single DualDual
Sound LevelAggressive / Moderate
System TypeCat-back
Tip Diameter (in)4
Tip Quantity2
Tubing Diameter (in)2.5
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number817596



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 2013-2016 Scion FR-S, 2017-20 Toyota 86 and 2013-2020 Subaru BRZ with 2.0L engine.


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