Flowmaster Force II Exhaust for Chevrolet/GMC | FLO186376
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- Have a different car? See all Flowmaster Force II Cat-Back Exhausts
- Mild interior drone and moderate exterior tone
- Catalog Number: Flowmaster 817640
- Fits: Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Sierra 2500 HD, GMC Sierra 3500 HD (check fitment chart for compatibility)
Flowmaster Force II Cat-Back Exhaust for Chevrolet/GMC | 817640
Product Specifications:
- Diameter (IN): 3-1/2 Inch
- Exhaust Tip Material: Stainless Steel
- Exhaust Tip Size (IN): 4 Inch
- Exhaust Tip Type: Round Angle-Cut
- Exhaust Type: Single
- Exit Position: Passenger Same Side
- Includes Exhaust Pipe Muffler Delete: No
- Includes Exhaust Tip: Yes
- Includes Hardware: Yes
- Includes Muffler: Yes
- Material: Stainless Steel
- Muffler Brand: 50 Series Big Block
- Muffler Configuration: Single Inlet/ Single Outlet
- Muffler Quantity: 1
- Outlet Type: Single
- Required Welding: Yes
- Sound Level: Mild/ Moderate
- Type: Cat-Back
Fitment Chart:
| Years | Make | Model | Submodel | Body Type | Bed Length | Liters | Cylinders | Notes |
|---|---|---|---|---|---|---|---|---|
| 2015 | Chevrolet | Silverado 2500 HD | LT | Extended Cab Pickup | 6' 6" Foot Bed | 6.0L | V8 | Single; Single Side Exit; Incl. 3.5 in. Tubing/4 in. Polished 304 Embossed Stainless Tip; No Muffer; 409 Stainless Steel; 50 State Legal / California Emissions Compliant |
| 2015 | Chevrolet | Silverado 2500 HD | LTZ | Extended Cab Pickup | 6' 6" Foot Bed | 6.0L | V8 | Single; Single Side Exit; Incl. 3.5 in. Tubing/4 in. Polished 304 Embossed Stainless Tip; No Muffer; 409 Stainless Steel; 50 State Legal / California Emissions Compliant |
| 2015 | Chevrolet | Silverado 2500 HD | WT | Extended Cab Pickup | 6' 6" Foot Bed | 6.0L | V8 | Single; Single Side Exit; Incl. 3.5 in. Tubing/4 in. Polished 304 Embossed Stainless Tip; No Muffer; 409 Stainless Steel; 50 State Legal / California Emissions Compliant |
| 2015 | GMC | Sierra 2500 HD | Base | Extended Cab Pickup | 6' 6" Foot Bed | 6.0L | V8 | Single; Single Side Exit; Incl. 3.5 in. Tubing/4 in. Polished 304 Embossed Stainless Tip; No Muffer; 409 Stainless Steel; 50 State Legal / California Emissions Compliant |
| 2011-2015 | GMC | Sierra 2500 HD | SLE | Extended Cab Pickup | 6' 6" Foot Bed | 6.0L | V8 | Single; Single Side Exit; Incl. 3.5 in. Tubing/4 in. Polished 304 Embossed Stainless Tip; No Muffer; 409 Stainless Steel; 50 State Legal / California Emissions Compliant |
| 2011-2015 | GMC | Sierra 2500 HD | SLT | Extended Cab Pickup | 6' 6" Foot Bed | 6.0L | V8 | Single; Single Side Exit; Incl. 3.5 in. Tubing/4 in. Polished 304 Embossed Stainless Tip; No Muffer; 409 Stainless Steel; 50 State Legal / California Emissions Compliant |
| 2012-2013 | GMC | Sierra 3500 HD | Crew Cab Pickup | 6' 6" Foot Bed | 6.0L | V8 | Single; Single Side Exit; Incl. 3.5 in. Tubing/4 in. Polished 304 Embossed Stainless Tip; No Muffer; 409 Stainless Steel; 50 State Legal / California Emissions Compliant | |
| 2011-2013 | Chevrolet | Silverado 2500 HD | Extended Cab Pickup | 6' 6" Foot Bed | 6.0L | V8 | Single; Single Side Exit; Incl. 3.5 in. Tubing/4 in. Polished 304 Embossed Stainless Tip; No Muffer; 409 Stainless Steel; 50 State Legal / California Emissions Compliant | |
| 2011-2013 | Chevrolet | Silverado 3500 HD | Crew Cab Pickup | 6' 6" Foot Bed | 6.0L | V8 | Single; Single Side Exit; Incl. 3.5 in. Tubing/4 in. Polished 304 Embossed Stainless Tip; No Muffer; 409 Stainless Steel; 50 State Legal / California Emissions Compliant | |
| 2011-2013 | GMC | Sierra 2500 HD | WT | Extended Cab Pickup | 6' 6" Foot Bed | 6.0L | V8 | Single; Single Side Exit; Incl. 3.5 in. Tubing/4 in. Polished 304 Embossed Stainless Tip; No Muffer; 409 Stainless Steel; 50 State Legal / California Emissions Compliant |
Mild exterior tone exhaust system
The Flowmaster 817640 Force II exhaust system is made for optimal performance. If you replace your old system with it, you'll certainly notice a significant improvement in the exhaust flow, the exhaust tone, horsepower, and general vehicle performance. It is a small price to pay for the ultimate exhaust upgrade.
Better Chevrolet Silverado 2500 HD air flow
The 2.5" mandrel-bent tubing allows a smooth and unlimited flow of exhaust gases. It also increases airflow for better performance.
Exclusive Flowmaster muffler
The system includes an exclusive Scavenger Series® X-pipe crossover for a moderate exterior tone and mild interior tone. It converts exhaust noise to a drone that makes for a more comfortable drive.
Maximum Chevrolet Silverado 2500 HD performance
The Flowmaster 817640 Force II exhaust system is also dyno-tuned for maximum performance with no internal resonance. This ensures a smooth flow with reduced interior and exterior noise for a more enjoyable drive.
Made strong to last long
The exhaust system components are made with the toughest steel in the industry. They are practically indestructible and will serve you for years without tarnishing, rusting or showing even the slightest sign of aging.
Easy fitment on your Chevrolet Silverado 2500 HD
The Flowmaster 817640 Force II exhaust system comes with factory mounting points for a full bolt-on installation. The purchase also includes all installation hardware as well as detailed instructions. For the best results, let a professional do the installation for you.
Manufacturer's guarantee of quality
Flowmaster provides a limited lifetime warranty for the stainless steel exhaust system and a three-year warranty for the aluminized steel system. It is a guarantee that the parts are the best in the industry, and have no defects.
Made in the USA
The exhaust system is proudly made in the USA with authentic locally made material and labor. The company provides employment for thousands of Americans every year, contributing to the growth of the economy and country at large.