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Flowmaster

American Thunder Cat-Back Exhaust System Fits 2015-2017 Ford Mustang Gt 5.0L Coupe, 3.0-Inch Stainless Steel Aggressive To Moderate Sound Flowmaster

$1,871.62

SKU: F00L 817730

In Stock
In Stock
Ships by Jun 7
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

This Flowmaster American Thunder Cat-Back Exhaust System (P/N 817730) is designed for 2015-2017 Ford Mustang GT 5.0L V8 Fastback models. It features Flowmaster's 60 Series mufflers and 4-inch polished 304 stainless steel tips with the Flowmaster logo. The system replaces original rear-mounted mufflers using factory-style connections, delivering an aggressive interior and exterior tone. Constructed from mandrel-bent 16 gauge, 409 stainless steel, it aims to improve throttle response, power, and fuel economy. The kit includes all necessary hangers and hardware for straightforward installation.

Fitment

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Specifications

BrandFlowmaster
Part NumberF00L 817730

Videos

2015-17 Ford Mustang GT 5.0L - American Thunder Cat-back Exhaust System 817730

2015-17 Ford Mustang GT 5.0L - American Thunder Cat-back Exhaust System 817730

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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