Our Most Aggressive Race-Oriented System Outlaw exhaust systems are ideal for those looking for the ultimate aggressive exhaust sound levels. These systems feature our race-bred Outlaw mufflers and deliver extremely aggressive sound levels inside and out. On catalytic converter equipped vehicles, Outlaws deliver very aggressive tones and may be street-compatible in some areas. All Outlaw systems are manufactured from 409S stainless steel for maximum durability.
Fitment Information
- Chevy Silverado/ GMC Sierra 2500HD/3500HD 6.6L Gas V8 (2020, 2021, 2022, 2023, 2024)
NOTE
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Emissions Compliance
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.
Specs & Features
- California Proposition 65 Chemical Name - Chromium (hexavalent compounds) / Nickel
- California Proposition 65 Required - Yes
- Emission Code - 5
- Exhaust Series - Outlaw
- Exit Position - Dual Out Rear / Side
- Heat Shield - No
- Inlet Diameter (in) - 3.50"
- Material - 409S Stainless Steel
- Muffler Quantity - 1
- Outlet Diameter (in) - 3.0"
- Product Type - Exhaust Systems / Kits
- Muffler Series - Outlaw
- Single / Dual - Dual
- Sound Level - Aggressive Sound
- System Type - Cat-back System
- Tip Diameter (in) - 4.0"
- Tip Quantity - 2
- Tubing Diameter (in) - 3.5/3
- Includes hangers and hardware for easy installation
Product Description
This Flowmaster® Flow FX® Outlaw® Cat-back exhaust system for the 2020-2024 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.
Features:- 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
Redline360 is an authorized Flowmaster dealer and sells only genuine Flowmaster products.

More in this category
Chevy Silverado Exhaust
Chevy Silverado Parts
Flowmaster Exhaust Systems
Flowmaster Outlaw Exhausts
GMC Sierra Exhaust
GMC Sierra Parts
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