Description
Overview
The Flowmaster Force II Cat-back Exhaust System is a complete bolt-on upgrade engineered to give 2011-2018 Chevrolet Silverado and GMC Sierra 1500 trucks equipped with the 6.2L engine a deeper, more muscular voice along with noticeable performance gains. Built around large 3.50-inch mandrel-bent tubing, this stainless steel system replaces restrictive factory piping to improve flow while retaining a refined, everyday-drivable character.
At the heart of the kit is a genuine Flowmaster 50 Series Big Block muffler, tuned to produce a strong exterior tone that lets everyone know your 6.2L means business. To keep the cabin comfortable, the system incorporates a built-in Helmholtz chamber that helps control interior resonance, delivering moderate sound levels inside and out rather than an overwhelming drone. The result is a well-balanced exhaust note that sounds aggressive under throttle yet remains civil during highway cruising.
Key Benefits
Because the Force II uses the factory hanger locations, installation is straightforward and requires no permanent modifications, making it an ideal bolt-on project for enthusiasts and shops alike. The system is finished with a highly polished 4.00-inch 304 stainless steel tip embossed with the Flowmaster logo, adding a clean, unmistakable look under the rear bumper.
- Large 3.50-inch mandrel-bent tubing for smooth, improved exhaust flow
- Flowmaster 50 Series Big Block muffler for a muscular exterior sound
- Built-in Helmholtz chamber to help control interior resonance
- Moderate interior and exterior sound levels for daily-driver comfort
- Single tail pipe with a polished 4.00-inch 304 stainless steel Flowmaster-embossed tip
- Stainless steel construction with a silver pipe finish
- Uses factory hanger locations for an easy, bolt-on installation
- CARB (California) compliant with Emission Code 5
What’s Included
This is a complete cat-back kit that includes the muffler, so you receive the components needed to replace the system from the catalytic converter back. Note that the muffler is supplied as part of the kit, and a heat shield is not included. The single tail pipe configuration and moderate sound tuning make this an excellent choice for owners who want a performance upgrade without sacrificing comfort.
Fitment
The Force II Cat-back is specifically designed for 2011-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks with the 6.2L engine in 2WD applications. Because it is CARB compliant, it is emissions-legal in California and other states that follow CARB standards. Confirm your model year, engine, and drive configuration before ordering to ensure a proper fit.
Backed by Flowmaster’s Lifetime Limited Warranty, the Force II delivers proven performance, signature sound, and lasting stainless steel durability for your Silverado or Sierra 1500.
