Flowmaster 817706 Outlaw Extreme Cat-Back Exhaust Kit 3 Inch 409 Stainless Steel Black
- 3 inch cat-back, 409 stainless steel
- Black dump turn down tips
- 2009-2013 Chevy Silverado, GMC Sierra 1500, 5.3L
- 143.5 and 157.5 inch wheelbases
- 42.5 x 22.2 x 16.5 inches package
Updated 2 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A loud stainless cat-back for the 5.3L Silverado and Sierra on two named wheelbases. The data has odd entries, so the title carries most of the fit information.
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ASIN: B01BDEXMZ6Model: 817706Category: Cat-Back Systems
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Overview
A driver of a half-ton GM truck who wants a louder tone and a black turn-down tip gets a stainless Outlaw Extreme cat-back. It runs from behind the catalytic converter to the rear of the truck.
Silverado and Sierra owners with the smaller engine get a kit that is specific to two wheelbases. The listing calls the material plastic and the type a car, which contradicts the stainless title.
Who it's for
Owners of the named GM trucks who know their wheelbase and want a visible black tip. Drivers with a different engine or years outside the range need another kit.
Pros and cons
- 409 stainless steel construction
- Black turn-down tip
- Matched to two wheelbases
- Vehicle specific fit
- Only two wheelbases
- Listing data contradicts itself
- Warranty not specified
Performance notes
A cat-back replaces the section behind the converter with larger tubing and mufflers, so the change is mostly exhaust note and tail-end flow. The Outlaw Extreme model is sold for an aggressive tone. No decibel or power figures are given.
Specifications
| Brand | Flowmaster |
|---|---|
| Model | 817706 |
| Dimensions & fit | |
| Package dimensions | 42.5 x 22.2 x 16.5 inches |
| Construction & materials | |
| Material | 409 stainless steel (title) |
| Compatibility & installation | |
| Fits | 2009-2013 Chevy Silverado, GMC Sierra 1500, 5.3L, 143.5 and 157.5 inch wheelbases |
| Warranty & support | |
| Warranty | Check with the manufacturer |
| Other details | |
| Fit type | Vehicle Specific Fit |
| System type | Outlaw Extreme cat-back exhaust kit |
| Number of items | 1 |
Frequently asked questions
How difficult is it to install the Flowmaster 817706?
The listing gives no installation steps or time. It is a bolt-in style cat-back, but confirm hardware with the seller.
Which wheelbases does the 817706 fit?
The title names 143.5 and 157.5 inch wheelbases.
Does it fit other engines?
No. The title names one engine only, the 5.3L.
Is the 817706 made of plastic?
No. The spec table says plastic, but the title says 409 stainless steel.