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Flowmaster American Thunder Axle-back Exhaust System

2016-2022 Camaro LS, LT with the 2.0L turbocharged engine.

Part # 817751 Be the first to write a review
Estimated shipping date: 02/01/2022
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This Flowmaster American Thunder® axle-back exhaust system is designed for 2016-2022 Camaro LS, LT coupes and convertible with the 2.0L turbocharged engine, and is perfect for the person looking for an aggressive to moderate sound level both inside and outside the car, with all of the performance benefits you would expect from Flowmaster®. This bolt-on emissions-legal system features a pair of our race-proven Outlaw® Series mufflers and dual mandrel-bent 2.50-inch tailpipes for maximum performance. The system is constructed from 409S stainless steel and is finished off with a pair of large 4.00-inch polished stainless steel tips. The system is covered by our Lifetime Limited Warranty and includes all necessary parts, hardware and instructions for a quick and easy installation you can do at home. Fits coupes and convertibles.


  • Large 4.00-inch Polished Stainless Steel Tips
  • Dyno-tuned For Maximum Performance
  • Race-proven Outlaw Series Mufflers
  • Stainless Steel Construction
  • Lifetime Limited Warranty
  • Full Mandrel-bent Tubing
  • Deep Powerful Sound

About Flowmaster

Flowmaster® is a household name, and for good reason. They've built legendary exhaust systems and mufflers for decades, and now offer performance air intakes, catalytic converters, and headers to give your hot rod performance to match the iconic Flowmaster sound.

Brand Flowmaster
Catalytic Converter IncludedNo
Emission Code5
Exhaust SeriesAmerican Thunder
Exit PositionDual Out Rear
Heat ShieldNo
Material409 Stainless Steel
Mount TypeUses Factory Hangers
Muffler FinishBlack
Muffler Inlet Diameter (in)2.25
Muffler Material409S Stainless Steel
Muffler Outlet Diameter (in)2.5
Muffler Quantity2
Muffler SeriesOutlaw
Muffler ShapeRound
Muffler TypeWelded Baffle
Product TypeExhaust System
Single DualDual
Sound LevelAggressive / Moderate
System TypeAxle-back
Tip CutAngle
Tip Diameter (in)4
Tip Edge StyleCut
Tip FinishPolished
Tip Length (in)5.25
Tip LogoEmbossed
Tip Material304 Stainless
Tip Quantity2
Tip ShapeRound
Tubing Diameter (in)2.5
Tubing Material409S Stainless Steel
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number817751

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.

Fits coupes and convertibles. Does NOT fit vehicles with the NPP performance exhaust option (Quad Tips.)

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    *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.