Flowmaster® (14-19) Silverado/Sierra 409SS Force II Cat-Back System (Crew/Double Cab)

  • Sale
  • Regular price $857.95

Compatible: (4.3L/5.3L)

2014 - 2019 Chevy Silverado (CLASSIC BODY STYLE)

2014 - 2019 GMC Sierra (CLASSIC BODY STYLE)


Does Not Fit Crew Cab 2WD with 2 Pc Driveshaft or 2019 New body style. Fits 2/4 Wheel Drive Crew cab and Double cab with 5.5 or 6.5-ft beds.


This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.


This is the Force II® cat-back exhaust system for the 2014-2019* (*Classic body) Chevrolet Silverado/GMC Sierra 1500 trucks with 4.3L or 5.3L engines. This exhaust system is perfect for the person looking for a moderate sound level outside the vehicle, but with a minimal sound increase inside the cab. Features include all stainless steel construction, a Super 50™ Series muffler, and dual 2.50-inch stainless steel mandrel-bent tailpipes. The system can be configured to exit either straight out the back under the rear bumper, or out the sides behind the rear tires for towing. It is then finished off with a pair of large 3.50-inch polished stainless steel tips and is covered by our Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for an easy installation you can do at home.


  • Large 3.50-inch Polished Stainless Steel Tips
  • Super 50 Series Performance Muffler
  • Uses the Factory Hanger Locations
  • Multiple Exit Styles Provided in Kit
  • All Stainless Steel Construction
  • Lifetime Limited Warranty
  • Powerful Exterior Sound
  • Minimal Interior Sound
  • Mandrel-bent Tubing
  • Easy Installation


Brand Flowmaster
Emission Code 5
Exhaust Series Force II
Exit Position Dual Out Rear / Dual Out Side
Heat Shield No
Inlet Diameter (in) 3
Material 409 Stainless Steel
Muffler Part Number Kit Only
Muffler Quantity 1
Muffler Series Super 50 Series
Outlet Diameter (in) 2.5
Product Type Exhaust System
Single Dual Dual
Sound Level Moderate
System Type Cat-back
Tip Diameter (in) 3.5
Tip Length (in) 13
Tip Quantity 2
Tubing Diameter (in) 2.5
California Proposition 65 Chemical Name Chromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 Required Yes
Part Number 817666


Install Guide: