Fits 20-26 GM 2500HD/3500HD 6.6L Gas Eng FFX Cat-Back Single Exit Exhaust System
Fits 20-26 GM 2500HD/3500HD 6.6L Gas Eng FFX Cat-Back Single Exit Exhaust System
Couldn't load pickup availability
Estimated Shipping Widget will be displayed here!
Material:
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.
3.5-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability. Kit includes complete hardware and factory styled hangers in the stock locations for an easy installation. A tuned Flow FX style muffler delivers a deep, aggressive to moderate performance tone and improves exhaust flow with no drone. Max increases of up to 11 hp and 10 lb-ft over the stock exhaust at the wheels. Tuned performance muffler eliminates interior drone. Maintains factory warranty. Lifetime Limited Warranty.
- Brand: Flowmaster
- California Proposition 65: Yes
- California Proposition 65 Chemical Name: Nickel (Metallic)
- California Proposition 65 Chemical Name: Chromium (hexavalent compounds)
- 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
- Drive: 2WD
- 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
- Exhaust Tip Edge: Rolled Edge Angle Cut
- Exhaust Tip Finish: Black Ceramic Coating
- Exhaust Tip Intercooled: No
- Exhaust Tip Length: 12.00
- 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
- Inlet Type: Flanged
- Main Piping Diameter: 3.50
- Mount Type: Uses Factory Hanger
- Mounting Bracket Included: No
- Muffler Body Height: 5.00
- Muffler Body Length: 18.00
- Muffler Body Material: 409 Stainless Steel
- Muffler Body Shape: Oval
- Muffler Body Width: 8.00
- 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
- Muffler Inlet Location: Center
- Muffler Inlet Outside Diameter: 3.63
- Muffler Outlet Connection: Slip-Fit
- Muffler Outlet Diameter: 3.50
- 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
- Tail Pipe Quantity: 1
- Tail Pipe Tapered Outlet: No
- Type: Cat-Back
- Valve Included: No
- Valve Type: Not Applicable
- Warning: California Proposition 65

Policies and FAQs
Return Policy
Fault reasons include but are not limited to:
- Buyer was shipped the wrong product
- Buyer was shipped a damaged product
- The product page had incorrect fitment and the part does not fit the Buyer's vehicle
Opened boxes, plastic bags, and other packaging are not considered damage (excluding single use items such as, but not limited to, liquids, software, and other components that cannot be reused/resealed).
FAQs
|Q. What is an Intermediate Brake Line?
|A. This is the line that runs from the front of the vehicle to the rear. On most vehicles it connects to a junction then you will have rear axle lines. On a few cars the intermediate lines will connect to the rear wheels. It is recommended to change the axle lines if you are replacing the intermediate lines.
|Q. What is included in a pre bent brake line kit?
|A. Our kits include all of the solid metal lines for that section of the vehicle
|Q. I need to return something - what's your return policy?
|A. We are happy to help! Please help us to help you by going to our return form and filling out the form as best as you can in order to request a return.
-
Modern Day stands by our parts and is happy to accept returns within 30 days of purchase. Parts must be in new condition.
-
If a part arrives damaged, or is defective, Please report it to us immediately. So we can handle it for your promptly.