-
Shop by Category
- Shop by product
- Shop by brand
- WHEELS & TIRES
- Contact us
-
My garageAdd vehicleMy garage
- Get product recommendations
- Easily find parts & accessories
- -10%
- FREE SHIPPING
Flowmaster | Outlaw Series Cat Back Exhaust System - Silverado / Sierra 2500 HD / 3500 HD 6.6L 2020-2022
- PROUDLY CANADIAN
- BEST PRICE GUARANTEE
- GUARANTEED FITMENT
Flowmaster – Cat Back Exhaust System
Description
The Flowmaster Outlaw Series Cat Back Exhaust System (Part #818112) is designed for the Chevrolet Silverado and GMC Sierra 2500HD/3500HD equipped with the 6.6L gas or diesel engine. Built from 409 stainless steel, this system features an Outlaw series muffler for a deep, aggressive sound both inside and outside the truck. Mandrel bent 3.5-inch and 3.0-inch tubing maximizes exhaust flow and durability. The system can be configured for dual rear exit or dual side exit behind the rear wheels, the latter being ideal for towing applications. Polished 4.0-inch stainless steel tips finish the kit. Maximum gains of 9 HP and 9 LB/FT over stock exhaust at the rear wheels. Bolt-on installation uses factory Hanger locations with all necessary hardware included. Backed by Flowmaster's Lifetime Limited Warranty.
Specifications
- Manufacturer: Flowmaster
- Part Number: 818112
- Type: Cat Back Exhaust System
- Material: 409 Stainless Steel
- Tubing Diameter: 3.5 in. and 3.0 in. (mandrel bent)
- Tips: 4.0 in. polished stainless steel
- Muffler: Outlaw Series
- Exit Options: Dual rear or dual side exit (configurable)
- Power Gains: Up to 9 HP / 9 LB/FT at the rear wheels
- Fitment: Silverado/Sierra 2500HD/3500HD 6.6L (See Application Section)
- Installation: Bolt-on installation, hardware included
- Condition: New
- Sold and shipped by: Truck Expert
Note:
- FREE Delivery
Chevrolet
2022 Silverado 2500 HD Custom / High Country / LT / LTZ / WT V8 6.6L SEE NOTE3
2021 Silverado 2500 HD Custom V8 6.6L SEE NOTE4
2020-2021 Silverado 2500 HD LT / WT V8 6.6L SEE NOTE4
2022 Silverado 2500 HD Custom / High Country / LT / LTZ / WT V8 6.6L Turbo Diesel SEE NOTE3
2020-2021 Silverado 2500 HD LT / WT V8 6.6L Turbo Diesel SEE NOTE4
2020-2021 Silverado 3500 HD LT / WT V8 6.6L SEE NOTE4
2020-2021 Silverado 3500 HD LT / WT V8 6.6L Turbo Diesel SEE NOTE4
GMC
2020-2022 Sierra 2500 HD AT4 / Denali / SLE / SLT V8 6.6L SEE NOTE1
2020-2021 Sierra 2500 HD Base V8 6.6L SEE NOTE1
2022 Sierra 2500 HD Pro V8 6.6L SEE NOTE1
2020-2022 Sierra 2500 HD AT4 / Denali / SLE / SLT V8 6.6L Turbo Diesel SEE NOTE1
2020-2021 Sierra 2500 HD Base V8 6.6L Turbo Diesel SEE NOTE1
2022 Sierra 2500 HD Pro V8 6.6L Turbo Diesel SEE NOTE1
2020-2021 Sierra 3500 HD AT4 / Base / Denali / SLE / SLT V8 6.6L SEE NOTE2
2020-2021 Sierra 3500 HD AT4 / Base / Denali / SLE / SLT V8 6.6L Turbo Diesel SEE NOTE2
Note 1: Crew Cab w/82.2 in./6 ft. 10.2 in. Bed;
Note 2: Crew Cab w/98.2 in.(249.4 mm)/8 ft. 2.2 in. Bed;Crew Cab w/82.2 in./6 ft. 10.2 in. Bed;
Note 3: Extended Cab w/98.2 in.(249.4 mm)/8 ft. 2.2 in. Bed;Crew Cab w/98.2 in.(249.4 mm)/8 ft. 2.2 in. Bed;Crew Cab w/82.2 in./6 ft. 10.2 in. Bed;Extended Cab w/82.2 in./6 ft. 10.2 in. Bed;
Note 4: Extended Cab w/98.2 in.(249.4 mm)/8 ft. 2.2 in. Bed;Regular Cab w/98.2 in.(249.4 mm)/8 ft. 2.2 in. Bed;Crew Cab w/98.2 in.(249.4 mm)/8 ft. 2.2 in. Bed;Crew Cab w/82.2 in./6 ft. 10.2 in. Bed;Extended Cab w/82.2 in./6 ft. 10.2 in. Bed;Regular Cab w/82.2 in./6 ft. 10.2 in. Bed;
