Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Exhaust› Exhaust Pipes, Systems and Components
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
SKU: F00L 817730
Moderate — 2–4 hours
Overview
Show original supplier description
Part #: 817730
The Flowmaster American Thunder Cat-back exhaust system is designed for 2015-2017 Ford Mustang GT 5.0L coupes and is perfect for the person looking for an aggressive sound level outside of the car, while maintaining a moderate sound level inside the car. This bolt-on emissions-legal system features our exclusive dual 3.00-inch mandrel-bent Scavenger Series X-pipe assembly for maximum power and a deep unique tone.The Scavenger X-pipe exits into a pair of specially designed 60 Series performance mufflers with 3.00-inch mandrel-bent tailpipes and are finished off with large 4.00-inch polished stainless steel tips. Designed for an easy fit, this system uses the factory hanger locations and includes all necessary parts and hardware for an installation you can do at home. Note: Does not fit Convertibles.Specially Designed 60 Series Performance Mufflers3.00-inch Mandrel-bent Stainless Steel TubingDyno Tuned For Maximum PerformanceUses the Factory Hanger LocationsStainless Steel ConstructionLifetime Limited WarrantyFlowmaster Quality
Features:
- Mandrel Bent 16ga 409 Stainless Tubing
- Specially Designed 60 Series Performance Mufflers
- Aggressive Exterior Exhaust Tone
- 3.00-inch Mandrel-bent Stainless Steel Tubing
- Incl. Hangers and Hardware For Easy Installation
- Dyno Tuned For Maximum Performance
- Dyno Tuned for Maximum Performance
- Uses the Factory Hanger Locations
- Premium Flowmaster Quality
- Stainless Steel Construction
- Patented Delta Flow Technology
- Lifetime Limited Warranty
- Lifetime Limited Warranty
- Flowmaster Quality
- Made in the USA
American Thunder Cat Back Exhaust System | Dual | Dual Out Rear Exit | Incl. 3.0 in. Tubing/60 Series (TM) Mufflers | 409 Stainless Steel
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Flowmaster |
| Part Number | F00L 817730 |
Videos
We’re here — turning wrenches, just like you.
Call us, follow along, or come say hi.
Buy with Confidence
Returns & Fitment
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.
View Full Return PolicyShipping
Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.
View Full Shipping Policy