817981
This Flowmaster® Outlaw® cat-back exhaust system is for the 2021-2023 Ford F-150 trucks with the 2.7L, 3.5L and 5.0L engines and offers maximum sound levels both inside and outside of the truck, with all of the performance benefits that you would expect from Flowmaster. This bolt-on emissions-legal system features all mandrel-bent 409 stainless steel 3.00-inch tubing flowing into a Super 10™ Series muffler and exiting into large 3.00-inch dual tailpipes for maximum sound and performance. The system comes with two sets of tailpipe exits for you to choose from, either straight out the back under the bumper, or exiting behind the rear wheels, which is ideal for towing applications. The tailpipes are finished off with a pair of large 4.00-inch black ceramic-coated stainless steel tips and the exhaust system is covered by our Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation. Note: Fits 2/4 wheel drive, all wheelbases.
Features:
- Super 10 Series Performance Muffler Offers a Deep Powerful Sound and Increased Performance
- Uses the Factory Hanger Locations for Easy Installation
- Full Stainless Steel Construction Delivers Extra Durability and Improved Corrosion Resistance
- Lifetime Limited Warranty
- 3.0-inch 16-Gauge Mandrel Bent Tubing Maintains Maximum Exhaust Flow for Better Power
- Includes Rear and Side Exit Tailpipes So You Can Choose Your Style
- Large 4.00-inch Black Ceramic Coated Tips add a Distinctive Look to Your Truck
- Clears the Factory Spare Tire
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.
SPECS
Brand | Flowmaster |
---|---|
Emission Code | 5 |
Exhaust Series | Outlaw |
Exit Position | DOR/S |
Mount Type | Uses Factory Hangers |
Muffler Body Length (in) | 6.5 |
Muffler Color | Black |
Muffler Finish | Painted |
Muffler Inlet Diameter (in) | 3.00 |
Muffler Inlet Location | Centered |
Muffler Material | 409S Stainless Steel |
Muffler Outlet Diameter (in) | 3.00 |
Muffler Outlet Location | Dual Outlet |
Muffler Overall Length (in) | 12.2 |
Muffler Part Number | Kit Only |
Muffler Quantity | 1 |
Muffler Series | 10 Series |
Muffler Shape | Oval |
Muffler Type | Reflection |
Product Type | Exhaust System |
Single Dual | Dual |
Sound Level | Aggressive |
System Type | Cat-back |
Tip Cut | Angle |
Tip Diameter | 4.00 |
Tip Edge Style | Cut |
Tip Finish | Black Ceramic |
Tip Length | 13 |
Tip Logo | Embossed |
Tip Material | 304 Stainless |
Tip Quantity | 2.00 |
Tip Shape | Round |
Tip Style | Double Wall |
Tubing Diameter (in) | 3 |
Tubing Material | 409S Stainless Steel |
UPC | 090127130575 |
California Proposition 65 Chemical Name | Chromium (hexavalent compounds) |
Nickel (Metallic) | |
California Proposition 65 Required | Yes |
Part Number | 817981 |
EMISSIONS
5
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
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