Fits 2020-2026 GM 2500HD/3500HD 6.6L Gas Engine FFX Direct Fit Muffler Exhaust System, 409 stainless steel
- Finish Natural
- Material 409 Stainless Steel
Questions about fitment? Live chat or call 866-235-4715
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- Free shippingMost orders $500+
- 30-day returnsSee policy
- Warranty supportWe work with the maker
Questions about fitment?
Talk to a TRU specialist
We’ll help you verify fitment before you buy.
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Specifications
| Brand | Flowmaster |
|---|---|
| Part number | 718155 |
| Body Diameter | 5 IN |
| Body Height | 5 IN |
| Body Length | 18 |
| Body Material | 409 Stainless Steel |
| Body Width | 8 IN |
| Brand | Flowmaster |
| Catalytic Converter Included | No |
| Category | Exhaust |
| Clamping Type | Flat Band |
| Clamps Included | Yes |
| Color | Natural |
| Emission Code | 5 |
| Exhaust Series | Flow FX |
| Exhaust Tip Quantity | 0 |
| Exit Style | OEM |
| Finish | Natural |
| Gasket Or Seal Included | No |
| Grade Type | Performance |
| Heat Shield Attached | No |
| Heat Shield Included | No |
| Inlet Diameter | 3.5 |
| Inlet Inside Diameter | 3.52 IN |
| Inlet Location | Center |
| Inlet Outside Diameter | 3.11 IN |
| Inlet Quantity | 1 |
| Inlet Type | Slip-Fit |
| Main Piping Diameter | Center |
| Material | 409 Stainless Steel |
| Mount Type | Uses Factory Hangers |
| Muffler Body Length | 10 |
| Muffler Body Material | 409 Stainless Steel |
| Muffler Body Shape | Round |
| Muffler Body Width | 8 IN |
| Muffler Color | Natural |
| Muffler Finish | Natural |
| Muffler Inlet Location | Center |
| Muffler Material | 409 Stainless Steel |
| Muffler Outlet Location | Center |
| Muffler Part Number | Kit Only |
| Muffler Quantity | 1 |
| Muffler Series | Flow FX |
| Muffler Shape | Oval |
| Muffler Type | Absorption |
| Outlet Diameter | 3.5 IN |
| Outlet Inside Diameter | 3.52 IN |
| Outlet Location | Center |
| Outlet Outside Diameter | 3.65 IN |
| Outlet Quantity | 1 |
| Outlet Type | Slip-Fit |
| Overall Length | 34.25 IN |
| part type | Exhaust Muffler Assembly |
| Pipe Material | 409 Stainless Steel |
| Product Type | Exhaust System |
| Shape | Oval |
| Single Dual | Single |
| Sound Level | Aggressive / Moderate |
| Sub Category | Mufflers |
| System Type | Direct-fit Muffler |
| Tubing Diameter | 3.5 IN |
| Tubing Material | 409 Stainless Steel |
| Type | Direct-fit Muffler |
| Type of Muffler | Absorption |
| Valve Actuator Included | No |
| Valve Included | No |
| Valve Type | Not Applicable |
| Vehicle Type | Truck/SUV |
| Warning | California Proposition 65 |
California Proposition 65 warning applies to this product. www.P65Warnings.ca.gov
Features
- Lifetime Limited Warranty
Installation
Free install support from the Trucks R Us tech team, for you or your shop.
Overview
Flowmaster's® Flow FX Direct-Fit Muffler exhaust system for the 2020-2026 GM 2500HD and 3500HD trucks with the 6.6L gas engines gives you a great value packed way to help you customize your GM truck to your personality. This performance muffler system fits both 2/4 Wheel drive models and is manufactured from 409 stainless steel for years of trouble-free service and performance. Features include a 3.50-inch inlet pipe leading into a 409 stainless steel Flow FX series "straight-through" muffler for great sound and maximum performance and no drone. The muffler then connects to the factory tailpipe for a simple and effective performance upgrade. Max dyno gains of 7 hp and 5 lb-ft at the rear wheels. This results in better acceleration and towing performance. The system uses all the factory hanger locations and connections for an easy installation that you can do at home. Kits include installation instructions and all necessary hardware. Backed by Flowmaster's Lifetime Limited Warranty.
Questions
Will this fit my truck?
Select your truck at the top of the page and the fit check will confirm it. If your exact trim is not listed, call 866-235-4715 or live chat and a fitment specialist will check it before you order.
Do you help with installation?
Yes. Our technical team helps you or your shop with installation and troubleshooting after delivery, on top of the manufacturer’s support.
What if the part has a problem?
We work the warranty claim with the manufacturer on your behalf, within the manufacturer’s warranty policy.
Can I return it?
Most items can be returned within 30 days. See our return policy for details.
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About Flowmaster
Manufacturer of performance exhaust systems, mufflers, performance air intakes, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices... Shop all Flowmaster