Home » Flowmaster 20-25 GM 2500HD 6.6L CCB Outlaw Cat-Back Exhaust System
Flowmaster 20-25 GM 2500HD 6.6L CCB Outlaw Cat-Back Exhaust System
Flowmaster 20-25 GM 2500HD 6.6L CCB Outlaw Cat-Back Exhaust System
Flowmaster 20-25 GM 2500HD 6.6L CCB Outlaw Cat-Back Exhaust System
Flowmaster 20-25 GM 2500HD 6.6L CCB Outlaw Cat-Back Exhaust System
Flowmaster 20-25 GM 2500HD 6.6L CCB Outlaw Cat-Back Exhaust System
Flowmaster 20-25 GM 2500HD 6.6L CCB Outlaw Cat-Back Exhaust System
Flowmaster 20-25 GM 2500HD 6.6L CCB Outlaw Cat-Back Exhaust System
Flowmaster 20-25 GM 2500HD 6.6L CCB Outlaw Cat-Back Exhaust System
Flowmaster 20-25 GM 2500HD 6.6L CCB Outlaw Cat-Back Exhaust System
Flowmaster 20-25 GM 2500HD 6.6L CCB Outlaw Cat-Back Exhaust System
Flowmaster 20-25 GM 2500HD 6.6L CCB Outlaw Cat-Back Exhaust System
Flowmaster 20-25 GM 2500HD 6.6L CCB Outlaw Cat-Back Exhaust System
Flowmaster 20-25 GM 2500HD 6.6L CCB Outlaw Cat-Back Exhaust System
Flowmaster 20-25 GM 2500HD 6.6L CCB Outlaw Cat-Back Exhaust System
Flowmaster 20-25 GM 2500HD 6.6L CCB Outlaw Cat-Back Exhaust System
Flowmaster 20-25 GM 2500HD 6.6L CCB Outlaw Cat-Back Exhaust System
Flowmaster 20-25 GM 2500HD 6.6L CCB Outlaw Cat-Back Exhaust System
Flowmaster 20-25 GM 2500HD 6.6L CCB Outlaw Cat-Back Exhaust System
Flowmaster

Flowmaster 20-25 GM 2500HD 6.6L CCB Outlaw Cat-Back Exhaust System

SKU: flo818112
Only 5 left
Low inventory - Hurry up!
$1,049.95

Ready to install and hit the road!

All parts come with the essentials you need for a smooth fit and clear instructions. From performance upgrades to custom styling, unbox and get your ride ready with confidence!

Got questions?
Feel free to get in touch

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. 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 Fits Crew Cab with 6.5-foot bed length, 159-inch wheelbase only. Will not fit models with 5th wheel tow hitch installed.
  • 3.50-inch and 3.00-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
  • Super 10 Series performance muffler delivers a deep, aggressive performance tone and improves exhaust flow
  • Includes complete hardware and factory styled hangers in the stock locations for an easy installation
  • Can be configured to exit straight out the rear or out the side depending on preference
  • Max increases of up to 9 hp and 9 lb.ft. over the stock exhaust at the rear wheels
  • Dual 4.00-inch polished stainless steel tips add a custom look
  • Backed by Flowmaster’s Lifetime Limited Warranty

Fitment:
2020 Chevrolet Silverado 2500 HD
2020 Chevrolet Silverado 3500 HD
2020 GMC Sierra 2500 HD
2020 GMC Sierra 3500 HD
2021 Chevrolet Silverado 2500 HD
2021 Chevrolet Silverado 3500 HD
2021 GMC Sierra 2500 HD
2021 GMC Sierra 3500 HD
2022 Chevrolet Silverado 2500 HD
2022 Chevrolet Silverado 3500 HD
2022 GMC Sierra 2500 HD
2022 GMC Sierra 3500 HD
2023 Chevrolet Silverado 2500 HD
2023 Chevrolet Silverado 3500 HD
2023 GMC Sierra 2500 HD
2023 GMC Sierra 3500 HD
2024 Chevrolet Silverado 2500 HD
2024 Chevrolet Silverado 3500 HD
2024 GMC Sierra 2500 HD
2024 GMC Sierra 3500 HD
2025 Chevrolet Silverado 2500 HD
2025 Chevrolet Silverado 3500 HD
2025 GMC Sierra 2500 HD
2025 GMC Sierra 3500 HD
2026 Chevrolet Silverado 2500 HD
2026 Chevrolet Silverado 3500 HD
2026 GMC Sierra 2500 HD
2026 GMC Sierra 3500 HD


Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1