Fits 2020-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Gas V8, Outlaw Series, 3.50" to Dual 3.00" Cat-Back, Dual Rear Exit, Stainless Steel Exhaust System
This Flowmaster® Outlaw® Cat-back exhaust system for the 2020-2026 Chevy Silverado and GMC Sierra 2500HD/3500HD trucks with the 6.6L gas engine, is perfect if you are looking for an aggressive sound level inside and outside of the truck, with all of the performance benefits that you would expect from Flowmaster®. Maximum increases of up to 9 hp and 9 lb.ft. over the stock exhaust at the rear wheels. Designed for the Crew Cab, Standard Bed (6.5 ft.) models only, this bolt-on, emissions-legal system features a stainless steel Outlaw series muffler and large dual 3.00-inch 409 stainless steel mandrel-bent tailpipes that can be configured to exit either dual straight out the back, or dual out the sides behind the rear wheels which is best suited for towing applications. The system is finished off with polished 4.00-inch stainless steel tips and is covered by our Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.
- Max increases of up to 9 hp and 9 lb.ft. over the stock exhaust at the rear wheels
- 3.50-inch and 3.00-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
- Dual 4.00-inch polished stainless steel tips add a custom look
- Includes complete hardware and factory styled hangers in the stock locations for an easy installation
- Super 10 Series performance muffler delivers a deep, aggressive performance tone and improves exhaust flow
- Backed by Flowmaster’s Lifetime Limited Warranty
- Can be configured to exit straight out the rear or out the side depending on preference
Information:
Fits Crew Cab with 6.5-foot bed length, 159-inch wheelbase only.
Will not fit models with 5th wheel tow hitch installed.
Application Summary:
| Year |
Make/Model |
| 2020-2026 |
Chevrolet Silverado 2500 HD |
| 2020-2026 |
Chevrolet Silverado 3500 HD |
| 2020-2026 |
GMC Sierra 2500 HD |
| 2020-2026 |
GMC Sierra 3500 HD |
| Attributes |
| Brand |
Flowmaster |
| CARB (California) Compliant |
Yes |
| California Proposition 65 |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| Catalytic Converter Included |
No |
| Catalytic Converter Quantity |
Not Included |
| Category |
Exhaust, Exhaust |
| Clamping Type |
Flat Band, Flat Band |
| Clamps Included |
Yes, Yes |
| Country of Origin (Primary) |
US |
| Emission Code |
5, 5 |
| Exhaust Series |
Outlaw, Outlaw |
| Exhaust System Kit Type |
Cat-Back |
| Exhaust Tip Diameter |
4.00, 4.00 |
| Exhaust Tip Finish |
Polished, Polished |
| Exhaust Tip Length |
13.00 |
| Exhaust Tip Material |
304 Stainless Steel, 304 Stainless Steel |
| Exhaust Tip Quantity |
2, 2 |
| Exhaust Type |
Cat-Back |
| Exit Position |
DOR/S |
| Finish |
Natural, Natural |
| GTIN |
00090127130162 |
| Gasket Or Seal Included |
No, No |
| Grade Type |
Performance, Performance |
| Hangers Included |
Yes, Yes |
| Harmonized Tariff Code (Schedule B) |
8708925000 |
| Hazardous Material Code |
N |
| Inlet Diameter |
3.50, 3.50 |
| Inlet Inside Diameter |
3.000 in. |
| Inlet Tubing Diameter |
3.50 |
| Inlet Type |
Flanged, Flanged |
| Life Cycle Status Code |
Available to Order |
| Main Piping Diameter |
3.50/3.00 |
| Material |
409 Stainless Steel |
| Mount Type |
Uses Factory Hangers, Uses Factory Hangers |
| Mounting Bracket Included |
Yes, Yes |
| Muffler Body Height |
4.00 |
| Muffler Body Length |
6.50, 6.50 |
| Muffler Body Length (in) |
6.5 |
| Muffler Body Material |
409 Stainless Steel, 409 Stainless Steel |
| Muffler Body Shape |
Oval, Oval |
| Muffler Body Width |
9.50 |
| Muffler Color |
Black, Black |
| Muffler Flanged Inlet |
No, No |
| Muffler Flanged Outlet |
No, No |
| Muffler Included |
Yes |
| Muffler Inlet Diameter |
3.50 |
| Muffler Inlet Diameter (in) |
3.50 |
| Muffler Inlet Inside Diameter |
3.50, 3.50 |
| Muffler Inlet Location |
Centered, Center |
| Muffler Inlet Outside Diameter |
3.63, 3.63 |
| Muffler Material |
409S Stainless Steel, 409 Stainless Steel |
| Muffler Outlet Diameter |
3.00, 3.00 |
| Muffler Outlet Diameter (in) |
3.00 |
| Muffler Outlet Location |
Dual Outlet, Dual |
| Muffler Outlet Quantity |
2, 2 |
| Muffler Overall Length |
12.375, 12.375 |
| Muffler Overall Length (in) |
12.375 |
| Muffler Part Number |
Kit Only, Kit Only |
| Muffler Quantity |
1, 1 |
| Muffler Series |
10 Series, 10 Series |
| Muffler Shape |
Oval |
| Muffler Type |
Chambered, Chambered |
| NAFTA Preference Criterion Code |
B |
| Outlet Tubing Diameter |
3.00 |
| Pipe Color |
Silver, Silver |
| Pipe Material |
409 Stainless Steel, 409 Stainless Steel |
| Product Type |
Exhaust System, Exhaust System |
| SDR Required Flag |
N |
| Sale Category |
Exhaust |
| Single Dual |
Dual |
| Sound Level |
Aggressive, Aggressive |
| Spring Bolt Kit Included |
No, No |
| Sub Category |
Exhaust and Tail Pipes, Exhaust and Tail Pipes |
| System Type |
Cat-back |
| Tail Pipe Outlet Outside Diameter |
3.00 |
| Tail Pipe Quantity |
2, Dual |
| Tail Pipe Tapered Outlet |
No, No |
| Tip Cut |
Angle |
| Tip Diameter |
4.000 in., 4.00 |
| Tip Edge Style |
Cut |
| Tip Finish |
Polished |
| Tip Length |
13, 13.00 |
| Tip Logo |
Embossed, Embossed |
| Tip Material |
304 Stainless, 304 Stainless Steel |
| Tip Quantity |
2.00 |
| Tip Shape |
Round |
| Tip Style |
Double Wall |
| Tubing Diameter |
3.000 in., 3.500 in. |
| Tubing Diameter (in) |
3.5/3 |
| Tubing Material |
409S Stainless Steel, 409 Stainless Steel |
| Type |
Cat-Back, Cat-Back |
| Valve Included |
No, No |
| Valve Type |
Not Applicable, Not Applicable |
| Warning |
California Proposition 65, California Proposition 65 |
| part type |
Exhaust System Kit, Exhaust System |
