Fits 20-26 GM 2500HD/3500HD 6.6L Gas Engine FFX Cat-Back Single Exit Exhaust System, 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.
Veteran-owned · Austin, Texas · Mon–Fri 9:30a–11:00a & 1:00p–5:30p CT
Specifications
| Brand | Flowmaster |
|---|---|
| Part number | 717927 |
| Brand | Flowmaster |
| CARB (California) Compliant | Yes |
| Catalytic Converter Included | No |
| Catalytic Converter Quantity | 0 |
| Category | Exhaust |
| Choose Your Part | Exhaust System |
| Clamping Type | Flat Band |
| Clamps Included | Yes |
| Drive | 4WD |
| Emission Code | 5 |
| Exhaust Series | Flow FX |
| Exhaust Tip Color | Black |
| Exhaust Tip Connection | Clamp-On |
| Exhaust Tip Cut | Angled |
| Exhaust Tip Diameter | 5.00 IN |
| Exhaust Tip Edge | Rolled Edge Angle Cut |
| Exhaust Tip Finish | Black Ceramic Coating |
| Exhaust Tip Intercooled | No |
| Exhaust Tip Length | 12.00 IN |
| Exhaust Tip Material | 304 Stainless Steel |
| Exhaust Tip Quantity | 1 |
| Exhaust Tip Resonated | No |
| Exhaust Tip Shape | Round |
| Exhaust Tip Wall | Single Wall |
| Exit Style | Single Out Side |
| Finish | Natural |
| Gasket Or Seal Included | No |
| Grade Type | Performance |
| Hangers Included | Yes |
| Heat Shield Included | No |
| Inlet Diameter | 3.50 IN |
| Inlet Type | Flanged |
| Main Piping Diameter | 3.50 IN |
| Mount Type | Uses Factory Hanger |
| Mounting Bracket Included | No |
| Muffler Body Height | 5.00 IN |
| Muffler Body Length | 18.00 IN |
| Muffler Body Material | 409 Stainless Steel |
| Muffler Body Shape | Oval |
| Muffler Body Width | 8.00 IN |
| Muffler Color | Natural |
| Muffler Finish | Natural |
| Muffler Flanged Inlet | No |
| Muffler Flanged Outlet | No |
| Muffler Included | Yes |
| Muffler Inlet Connection | Slip-Fit |
| Muffler Inlet Inside Diameter | 3.50 IN |
| Muffler Inlet Location | Center |
| Muffler Inlet Outside Diameter | 3.63 IN |
| Muffler Outlet Connection | Slip-Fit |
| Muffler Outlet Diameter | 3.50 IN |
| Muffler Outlet Location | Center |
| Muffler Outlet Quantity | 1 |
| Muffler Quantity | 1 |
| Muffler Series | Flow FX |
| Muffler Type | Absorption |
| part type | Exhaust System |
| Pipe Color | Silver |
| Pipe Material | 409 Stainless Steel |
| Product Type | Exhaust System |
| Sound Level | Aggressive / Moderate |
| Spring Bolt Kit Included | No |
| Sub Category | Exhaust and Tail Pipes |
| Tail Pipe Outlet Outside Diameter | 3.50 IN |
| Tail Pipe Quantity | 1 |
| Tail Pipe Tapered Outlet | No |
| Type | Cat-Back |
| Valve Included | No |
| Valve Type | Not Applicable |
| 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 Cat-Back exhaust system for the 2020-2026 GM 2500HD and 3500HD trucks with the 6.6L gas engines gives you a great way to help you customize your GM truck to your personality. This performance exhaust 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 11 hp and 10 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