Flowmaster American Thunder Cat-back Exhaust System
Fits 2020-2025 GM 2500HD/3500HD with 6.6L gas engine, Crew Cab/Short Bed, Dual Out Rear/Dual Out Side, Polished Tips - Aggressive to moderate sound
Part # 817933
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Flowmaster American Thunder Cat-back Exhaust System
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MSRP $1,094.95
$874.95
Save $220.00
5
Emissions
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.
See Emissions DetailsThe Flowmaster® American Thunder® Cat-back exhaust system for the 2020-2025 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.
Features:
- 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
| Brand | Flowmaster |
|---|---|
| Catalytic Converter Format | No |
| Catalytic Converter Quantity | 0 |
| Category | Exhaust |
| Clamps Included | Yes |
| Emission Code | 5 |
| Exhaust Series | American Thunder |
| Exhaust System Kit Type | Cat-Back |
| Exhaust Tip Diameter | 4.00 IN |
| Exhaust Tip Intercooled | No |
| Exhaust Tip Quantity | 2 |
| Exit Position | Dual Out Rear / Dual Out Side |
| Exit Style | Dual Out Rear |
| Dual Out Side | |
| Finish | Natural |
| Gasket Or Seal Included | No |
| Grade Type | Performance |
| Hangers Included | Yes |
| Heat Shield | No |
| Main Piping Diameter | 3.00 IN |
| Material | 409 Stainless Steel |
| Mount Type | Uses factory hangers |
| Muffler Body Length | 18.00 IN |
| Muffler Color | Black |
| Muffler Finish | Black High-Temperature Paint Finish |
| Muffler Inlet Diameter | 3.50 IN |
| Muffler Inlet Location | Center |
| Muffler Material | 409 Stainless Steel |
| Muffler Outlet Diameter | 3.00 IN |
| Muffler Outlet Location | Dual |
| Muffler Overall Length | 24.00 IN |
| Muffler Part Number | Kit Only |
| Muffler Quantity | 1 |
| Muffler Series | 50 Series HD |
| Muffler Shape | Oval |
| Muffler Type | Reflection |
| part type | Exhaust System Kit |
| Pipe Material | 409 Stainless Steel |
| Product Type | Exhaust System |
| Single Dual | Dual |
| Sound Level | Aggressive / Moderate |
| Sub Category | Exhaust and Tail Pipes |
| System Type | Cat-back |
| Tail Pipe Tapered Outlet | No |
| Tip Cut | Angle |
| Tip Diameter | 4.00 IN |
| Tip Edge Style | Cut |
| Tip Finish | Polished |
| Tip Length | 13.00 IN |
| Tip Logo | Embossed |
| Tip Material | 304 Stainless Steel |
| Tip Quantity | 2 |
| Tip Shape | Round |
| Tip Style | Double Wall |
| Tubing Diameter | 3.00 IN |
| Tubing Material | 409 Stainless Steel |
| Type | Cat-Back |
| Valve Included | No |
| Valve Type | Not Included |
| UPC | 700042039760 |
| California Proposition 65 Chemical Name | Chromium (hexavalent compounds), Nickel (Metallic) |
| California Proposition 65 Required | Yes |
| Part Number | 817933 |
![Flowmaster Exhaust Tip]()
Exhaust Tip - 4.00 in. Angle Cut Polished SS Fits 3.00 in. Tubing - Clamp on$93.56Qty:
5
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.
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