Flowmaster 817707 Outlaw Extreme Cat-Back Exhaust Kit 3 Inch 409 Stainless Steel Black
- 3 inch cat-back, 409 stainless steel
- Black dump turn down tips
- 2009-2014 Ford F-150, 4.6L, 5.0L and 5.4L engines
- 2WD and 4WD, all wheelbases
- Outlaw Extreme kit, vehicle specific fit
Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A loud Outlaw Extreme cat-back in stainless steel for a broad range of Ford truck engines and wheelbases. The listing is almost empty beyond the title, so details like hardware and warranty are unconfirmed.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B01BDEXMLAModel: 817707Category: Cat-Back Systems
Overview
A mechanism of stainless pipe and mufflers runs behind the catalytic converter to a black turn-down tip. This Outlaw Extreme kit is meant for the listed Ford truck years and covers every wheelbase and drive type.
Owners with any of the listed engines get one part number that spans two-wheel and four-wheel drive. The data contains conflicting entries, such as headers listed in a cat-back and a plastic material, so lean on the title.
Who it's for
Owners of the listed Ford trucks who want an aggressive tone and stainless pipe. Anyone needing a documented hardware list or warranty term should ask the seller.
Pros and cons
- 409 stainless steel construction
- Covers all wheelbases
- Two engines or more in one part number
- Black turn-down tip finish
- Listing details are thin
- Contradictory material and contents entries
- Warranty not specified
Performance notes
A cat-back swaps the restrictive section behind the converter for larger tubing and tuned mufflers, so the main change is sound and tail-end flow. The Outlaw Extreme name signals an aggressive tone. The listing gives no power or decibel figure.
Where it stands among cat-back systems
- #9 most-searched brand and model of the 12 cat-back systems lines we track (by search demand, not sales).
From the specs of the 15 cat-back systems we list; not a test result.
Specifications
| Brand | Flowmaster |
|---|---|
| Model | 817707 |
| Construction & materials | |
| Material | 409 stainless steel (title) |
| Compatibility & installation | |
| Fits | 2009-2014 Ford F-150 4.6L 5.0L 5.4L, 2WD and 4WD, all wheelbases |
| Warranty & support | |
| Warranty | Check with the manufacturer |
| Other details | |
| Fit type | Vehicle Specific Fit |
| System type | Outlaw Extreme cat-back exhaust kit |
| Shape | Round |
| Number of items | 1 |
Frequently asked questions
What does the Flowmaster 817707 kit include?
The listing lists mufflers, kits, headers and tips, but headers do not belong in a cat-back, so confirm the contents with the seller.
Is the Flowmaster 817707 a full exhaust?
No. It is a cat-back, so it starts behind the catalytic converter.
Which F-150 wheelbases does the 817707 fit?
All wheelbases, according to the title, on both 2WD and 4WD trucks.
How long is it?
The listing gives no length or size, so ask the seller.