Flowmaster American Thunder Cat-back Exhaust System - 817933
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Specifications:
| Brand | Flowmaster |
| California Proposition 65 | Yes |
| California Proposition 65 Chemical Name | Chromium (hexavalent compounds) |
| California Proposition 65 Chemical Name | Nickel (Metallic) |
| CARB (California) Compliant | Yes |
| 2874 | 0 |
| Category | Exhaust |
| 3728 | Flat Band |
| 1882 | Yes |
| Emission Code | 5 |
| Exhaust Series | American Thunder |
| 11205 | Silver |
| 9874 | Clamp-On |
| 9876 | Angled |
| 1162 | 4.00 |
| 9877 | Angle Cut |
| 1163 | Polished |
| 9881 | No |
| 10104 | 13.00 |
| 1164 | 304 Stainless Steel |
| 1161 | 2 |
| 9878 | No |
| 10980 | Round |
| 9875 | Double Wall |
| 9870 | Dual Out Side |
| 9870 | Dual Out Rear |
| 200 | Natural |
| 353 | No |
| 3390 | Performance |
| 4364 | Yes |
| Heat Shield Included | No |
| 596 | Flanged |
| Mount Type | Uses Factory Hangers |
| 92 | Yes |
| 9884 | 5.00 |
| 1892 | 18.00 |
| 4372 | 409 Stainless Steel |
| 4373 | Oval |
| Muffler Color | Black |
| 9882 | Black High-Temperature Paint Finish |
| 4367 | No |
| 4368 | No |
| Muffler Included | Yes |
| 9962 | Slip-Fit |
| 4365 | 3.50 |
| Muffler Inlet Location | Center |
| 4366 | 3.63 |
| 9963 | Slip-Fit |
| Muffler Outlet Diameter | 3.00 |
| Muffler Outlet Location | Dual |
| 4375 | 2 |
| Muffler Overall Length | 24.00 |
| Muffler Part Number | Kit Only |
| 4374 | 1 |
| Muffler Series | 50 Series HD |
| 1174 | Reflection |
| part type | Exhaust System |
| 3530 | 409 Stainless Steel |
| Product Type | Exhaust System |
| Sound Level | Aggressive / Moderate |
| 4377 | No |
| Sub Category | Exhaust and Tail Pipes |
| 4369 | 3.00 |
| 4376 | 2 |
| Tail Pipe Quantity | Dual |
| 4370 | No |
| Tip Logo | Embossed |
| 9871 | 3.00 |
| 26 | Cat-Back |
| 6014 | No |
| 2126 | Not Applicable |
| Warning | California Proposition 65 |
| Pipe Color | Silver |
| 9885 | 10.00 |
| 11906 | No |
| Description_ABR | SYS 20-26 |
| Description_SHO | SYS 2020-2026 GM 250 |
| Description_INV | 20202025 GM 2500HD 66L CCSB AMT DORS |
| Description_ASC | Fits 2020-2026 Chevy Silverado/GMC Sierra 2500HD/3500HD trucks with 6.6L gas engine. Crew Cab/6.5ft bed only. Will not fit models with 5th wheel tow hitch installed. |
| Description_DES | Flowmaster American Thunder Cat-back Exhaust System |
| Description_EXT | Fits 2020-2026 GM 2500HD/3500HD with 6.6L gas engine, Crew Cab/Short Bed, Dual Out Rear/Dual Out Side, Polished Tips - Aggressive to moderate sound |
| Description_MKT | The Flowmaster® American Thunder® Cat-back exhaust system for the 2020-2026 Chevy Silverado and GMC Sierra 2500HD and 3500HD trucks with the 6.6L gas engine, has a moderate to aggressive sound level inside and outside of the truck, with all of the performance benefits you expect from Flowmaster®. Designed for the Crew Cab, Standard Bed (6.5 ft.) models only, this bolt-on, emissions-legal system features a stainless steel 50 Series HD™ 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 a pair of large 4.00-inch polished 304 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. Notes: Fits Crew Cab with 6.5' bed length, 159-inch wheelbase only. Will not fit models with 5th wheel tow hitch installed. |
| Description_FAB | Mandrel-bent 16-gauge Tubing for Maximum Exhaust Flow Uses the Factory Hanger Locations for Easy Installation 50 Series HD Muffler with Delta Flow Technology 409 Stainless Steel Construction for Long Life Increased Performance and Exhaust Flow Multiple Tailpipe Exits Provided in Kit Large 3.00-inch Dual Tailpipes Deep Powerful Exterior Sound Lifetime Limited Warranty Flowmaster Quality |
This Part Fits:
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2020 | Chevrolet | Silverado 2500 HD | Custom | |
| 2021 | Chevrolet | Silverado 2500 HD | Custom | |
| 2022 | Chevrolet | Silverado 2500 HD | Custom | |
| 2023 | Chevrolet | Silverado 2500 HD | Custom | |
| 2024 | Chevrolet | Silverado 2500 HD | Custom | |
| 2025 | Chevrolet | Silverado 2500 HD | Custom | |
| 2026 | Chevrolet | Silverado 2500 HD | Custom | |
| 2020 | Chevrolet | Silverado 2500 HD | High Country | |
| 2021 | Chevrolet | Silverado 2500 HD | High Country | |
| 2022 | Chevrolet | Silverado 2500 HD | High Country | |
| 2023 | Chevrolet | Silverado 2500 HD | High Country | |
| 2024 | Chevrolet | Silverado 2500 HD | High Country | |
| 2025 | Chevrolet | Silverado 2500 HD | High Country | |
| 2026 | Chevrolet | Silverado 2500 HD | High Country | |
| 2020 | Chevrolet | Silverado 2500 HD | LT | |
| 2021 | Chevrolet | Silverado 2500 HD | LT | |
| 2022 | Chevrolet | Silverado 2500 HD | LT | |
| 2023 | Chevrolet | Silverado 2500 HD | LT | |
| 2024 | Chevrolet | Silverado 2500 HD | LT | |
| 2025 | Chevrolet | Silverado 2500 HD | LT | |
| 2026 | Chevrolet | Silverado 2500 HD | LT | |
| 2020 | Chevrolet | Silverado 2500 HD | LTZ | |
| 2021 | Chevrolet | Silverado 2500 HD | LTZ | |
| 2022 | Chevrolet | Silverado 2500 HD | LTZ | |
| 2023 | Chevrolet | Silverado 2500 HD | LTZ | |
| 2024 | Chevrolet | Silverado 2500 HD | LTZ | |
| 2025 | Chevrolet | Silverado 2500 HD | LTZ | |
| 2026 | Chevrolet | Silverado 2500 HD | LTZ | |
| 2020 | Chevrolet | Silverado 2500 HD | WT | |
| 2021 | Chevrolet | Silverado 2500 HD | WT | |
| 2022 | Chevrolet | Silverado 2500 HD | WT | |
| 2023 | Chevrolet | Silverado 2500 HD | WT | |
| 2024 | Chevrolet | Silverado 2500 HD | WT | |
| 2025 | Chevrolet | Silverado 2500 HD | WT | |
| 2026 | Chevrolet | Silverado 2500 HD | WT | |
| 2024 | Chevrolet | Silverado 2500 HD | ZR2 | |
| 2025 | Chevrolet | Silverado 2500 HD | ZR2 | |
| 2026 | Chevrolet | Silverado 2500 HD | ZR2 | |
| 2022 | Chevrolet | Silverado 3500 HD | Base | |
| 2023 | Chevrolet | Silverado 3500 HD | Base | |
| 2021 | Chevrolet | Silverado 3500 HD | High Country | |
| 2022 | Chevrolet | Silverado 3500 HD | High Country | |
| 2023 | Chevrolet | Silverado 3500 HD | High Country | |
| 2024 | Chevrolet | Silverado 3500 HD | High Country | |
| 2025 | Chevrolet | Silverado 3500 HD | High Country | |
| 2026 | Chevrolet | Silverado 3500 HD | High Country | |
| 2021 | Chevrolet | Silverado 3500 HD | LT | |
| 2022 | Chevrolet | Silverado 3500 HD | LT | |
| 2023 | Chevrolet | Silverado 3500 HD | LT | |
| 2024 | Chevrolet | Silverado 3500 HD | LT | |
| 2025 | Chevrolet | Silverado 3500 HD | LT | |
| 2026 | Chevrolet | Silverado 3500 HD | LT | |
| 2021 | Chevrolet | Silverado 3500 HD | LTZ | |
| 2022 | Chevrolet | Silverado 3500 HD | LTZ | |
| 2023 | Chevrolet | Silverado 3500 HD | LTZ | |
| 2024 | Chevrolet | Silverado 3500 HD | LTZ | |
| 2025 | Chevrolet | Silverado 3500 HD | LTZ | |
| 2026 | Chevrolet | Silverado 3500 HD | LTZ | |
| 2021 | Chevrolet | Silverado 3500 HD | WT | |
| 2022 | Chevrolet | Silverado 3500 HD | WT | |
| 2023 | Chevrolet | Silverado 3500 HD | WT | |
| 2024 | Chevrolet | Silverado 3500 HD | WT | |
| 2025 | Chevrolet | Silverado 3500 HD | WT | |
| 2026 | Chevrolet | Silverado 3500 HD | WT | |
| 2024 | GMC | Sierra 2500 HD | AT4X | |
| 2025 | GMC | Sierra 2500 HD | AT4X | |
| 2026 | GMC | Sierra 2500 HD | AT4X | |
| 2020 | GMC | Sierra 2500 HD | Base | |
| 2023 | GMC | Sierra 2500 HD | Pro | |
| 2024 | GMC | Sierra 2500 HD | Pro | |
| 2025 | GMC | Sierra 2500 HD | Pro | |
| 2026 | GMC | Sierra 2500 HD | Pro | |
| 2021 | GMC | Sierra 3500 HD | AT4 | |
| 2022 | GMC | Sierra 3500 HD | AT4 | |
| 2023 | GMC | Sierra 3500 HD | AT4 | |
| 2024 | GMC | Sierra 3500 HD | AT4 | |
| 2025 | GMC | Sierra 3500 HD | AT4 | |
| 2026 | GMC | Sierra 3500 HD | AT4 | |
| 2021 | GMC | Sierra 3500 HD | Base | |
| 2021 | GMC | Sierra 3500 HD | Denali | |
| 2022 | GMC | Sierra 3500 HD | Denali | |
| 2023 | GMC | Sierra 3500 HD | Denali | |
| 2024 | GMC | Sierra 3500 HD | Denali | |
| 2025 | GMC | Sierra 3500 HD | Denali | |
| 2026 | GMC | Sierra 3500 HD | Denali | |
| 2023 | GMC | Sierra 3500 HD | Pro | |
| 2024 | GMC | Sierra 3500 HD | Pro | |
| 2025 | GMC | Sierra 3500 HD | Pro | |
| 2026 | GMC | Sierra 3500 HD | Pro | |
| 2021 | GMC | Sierra 3500 HD | SLE | |
| 2022 | GMC | Sierra 3500 HD | SLE | |
| 2023 | GMC | Sierra 3500 HD | SLE | |
| 2024 | GMC | Sierra 3500 HD | SLE | |
| 2025 | GMC | Sierra 3500 HD | SLE | |
| 2026 | GMC | Sierra 3500 HD | SLE | |
| 2021 | GMC | Sierra 3500 HD | SLT | |
| 2022 | GMC | Sierra 3500 HD | SLT | |
| 2023 | GMC | Sierra 3500 HD | SLT | |
| 2024 | GMC | Sierra 3500 HD | SLT | |
| 2025 | GMC | Sierra 3500 HD | SLT | |
| 2026 | GMC | Sierra 3500 HD | SLT |
Please read the policy below to familiarize yourself with how we operate.
Please verify the part number that you are ordering before you place your order. If a part is ordered incorrectly by the customer and then returned, the customer will be responsible for all shipping charges and will be subject to a 20% restocking fee. We cannot be held responsible for manufacturer misinformation. If we messed up the order, then of course, we will take care of it. An RGA number must be requested within 7 days of receipt of the product by the customer. Returns must be received within 30 days of the initial purchase. We do not accept returns after 30 days. If an RGA is requested after 7 days of receiving the product then only an in-store credit will be issued. We do not refund shipping costs.
At Offroad Trading Company, we are committed to providing high-quality products and ensuring customer satisfaction. It does not matter if it is a Jeep, Truck, Bronco or any other 4x4 vehicle, our extensive experience and deep understanding of the off-road industry enable us to offer products that meet the highest standards of quality and performance. Choosing Offroad Trading Company means choosing a partner who is as passionate about off-roading as you are.