Skip to product information
1 of 3

2015-2020 Ford Mustang Cat-back Exhaust System Flowmaster American Thunder 817750

2015-2020 Ford Mustang Cat-back Exhaust System Flowmaster American Thunder 817750

SKU: 817750
Regular price $894.56 USD
Regular price Sale price $894.56 USD
Sale Sold out

The Flowmaster American Thunder® Cat-back exhaust system for the 2015-2020 Ford Mustang with the 2.3L Ecoboost engine is perfect for the person looking for an aggressive exterior sound level while maintaining a moderate interior sound with all of the performance benefits that you would expect from Flowmaster®. This bolt-on emissions legal system is constructed from 409S stainless steel and features a single 2.50-inch mandrel-bent inlet tube that splits into duals leading into a pair of our race proven 3.00-inch inlet Outlaw® mufflers for both maximum performance and sound. The system is finished off with dual 4.00-inch polished stainless steel tips that exit within the rear bumper valence. The exhaust system is covered by Flowmaster's Lifetime Limited Warranty and includes all necessary parts and hardware for an easy installation you can do at home. Note: Fits both hardtops and convertible models.

Features

  • Race Proven Outlaw Muffler Technology
  • Dyno Tuned For Maximum Performance
  • Deep Aggressive Performance Tone
  • Uses the Factory Hanger Locations
  • Stainless Steel Construction
  • Lifetime Limited Warranty
  • Mandrel-bent Tubing
  • Easy Installation

Application

  • Fits 2015-2020 Ford Mustang with 2.3L Ecoboost engine. Both coupes and convertible
2WD/4WD RWD
Brand Flowmaster
California Proposition 65 Chemical Name Chromium (hexavalent compounds)
California Proposition 65 Chemical Name Nickel (Metallic)
California Proposition 65 Required Yes
Catalytic Converter Included No
Color Black
Emission Code 5
Exhaust Series American Thunder
Exit Position Dual Out Rear
Heat Shield No
Inlet Diameter (in) 3
Material 409 Stainless Steel
Mount Type Flanged
Muffler Part Number Kit Only
Muffler Quantity 2
Muffler Series Outlaw
Muffler Type Welded Baffle
Outlet Diameter (in) 3
Product Type Exhaust System
Shape Oval
Single Dual Dual
Sound Level Moderate/Aggressive
System Type Cat-back
Tip Cut Angle
Tip Diameter (in) 4
Tip Edge Style Cut
Tip Finish Polished
Tip Length (in) 5.25
Tip Logo Embossed
Tip Material Stainless Steel
Tip Quantity 2
Tip Shape Round
Tubing Diameter (in) 2.25/3.00
Tubing Material Stainless Steel
Warning California Proposition 65
View full details

Policies and FAQs

Return Policy

We offer 30 days return of 100% purchase price for defective items. Return shipping and handling charges are the customers responsibility unless it is our mistake. (If shipping was included it will be deducted from the return)  If the part is wrong or defective please advise us if you would like an exchange, replacement or refund. We suggest our buyers keep tracking number delivery confirmation, and pack item securely to protect the return. If the part is lost we are unable to offer a refund. The part(s) must be returned in its original condition. Returns over 30 days may be accepted at a discounted price & offered store credit. Our return address is 774 Broad St Wadsworth, Oh 44281.

FAQs

This is the line that runs from the front of the vehicle to the rear. On most vehicles it connects to a junction then you will have rear axle lines. On a few cars the intermediate lines will connect to the rear wheels. It is recommended to change the axle lines if you are replacing the intermediate lines.

Our kits include all of the solid metal lines for that section of the vehicle.

We are happy to help! Please help us to help you by going to our return form and filling out the form as best as you can in order to request a return.

  • Modern Day stands by our parts and is happy to accept returns within 30 days of purchase. Parts must be in new condition.
  • If a part arrives damaged, or is defective, Please report it to us immediately. So we can handle it for your promptly.

Yes but you will need to order in advance. All of our items are not stocked at our location. So please place your order online and we will notify you when it is ready for pick up.

Unfortunately we cannot offer single lines outside of kits

Yes, all are covered by the manufacturer's standard warranty. Most warranties cover the cost of parts. Any installation or other fees are non-refundable.

Online we accept PayPal and all major Credit Cards. If your are picking an item up we gladly accept cash.

We can only ship to your confirmed address in PayPal or your billing address if you pay with a credit card.

Orders typically Arrive within 3 to 10 days depending if it is a stocked item or something we have manufactured at time of sale.

Yes please send us a message through our custom orders page.

Yes, but items sent out of the continental U.S. may incur additional charges based on their destination

The left and right sides on a vehicle are determined as though you were sitting in the driver's seat. The left is the driver's side, and the right is the passenger's side.

Check it again tomorrow. It takes up to 1 day for the carrier to give status and a delivery date. UPS and FedEx provide delivery dates, USPS usually does not but they take no longer than 5 business days.

Yes! Thank you for your military service!

Still have a question or concern?  Please contact use our contact us form!

Yes! Thank you for your military service!