AFE Power Large Bore-HD 5" 409 Stainless Steel Down-Pipe Back Exhaust System

2017 - 2018 6.7L Ford Powerstroke

SKU NWD-49-43093

49-43093 / 49-43093-B / 49-43093-P

Flow and Performance:
This Large Bore-HD exhaust system is constructed of 5" mandrel-bent 409 stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT’s.

  • Features
  • Videos
  • Instructions
  • Vehicle Fitment


  • Constructed from 5" mandrel-bent 409 stainless steel tubing
  • Single rear exit w/ no tip
  • Uses high quality band clamps and OE-style bayonet hangers
  • Includes high flow stainless steel muffler
  • Utilizes all factory mounting locations to provide a quick, hassle-free installation
  • Fits 141.6"; 148"; 164.2"; 159.8" & 176" Wheelbases

High Flow 409 Stainless Steel Muffler:
This 409 stainless steel performance muffler is designed to provide a deep, throaty, powerful sound on acceleration, but maintain a smooth sound at idle. This muffler is constructed of 409 stainless steel and uses a straight through perforated core with heat resistant packing to reduce backpressure and maximize exhaust flow. You will see increased performance and improved throttle response over the factory exhaust. Also featuring a stamped aFe POWER logo for an aggressive style. Muffler Specifications: 5" Center Inlet /Outlet, 8" Round x 24" L Body Diameter.

OE Fit:
OE-style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE-style fit that does not change with time.

2017 Ford Super Duty F-250/F-350 V8-6.7L (td) Power Stroke (Note: Exhaust was developed on Crew Cab/Long Bed 176" Wheelbase)

Single Cab/Long Bed, 8' ft. Bed, 141.6" Wheelbase
Extended Cab/Short Bed, 7.5 ft. Bed, 148” Wheelbase
Crew Cab/Short Bed, 7.5 ft. Bed, 158.2” Wheelbase
Extended Cab/Long Bed, 8 ft. Bed, 164.2” Wheelbase
Crew Cab/Long Bed, 8 ft. Bed, 176” Wheelbase

Note 1:
Cutting is required for Extended Cab/Short Bed; Extended Cab/Long Bed & Single Cab/Long Bed. No cutting required for Crew Cab/Short Bed & Crew Cab/Long Bed.

Note 2:
This is a "Race Only" product that is to be used solely for competition. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use including recreational off-road use could be in violation of local, state and federal laws. This system is not currently CARB exempt and is not available for sale in California or for use on any vehicle registered with the California Department of Motor Vehicle.

All aFe exhaust systems are engineered and manufactured in their Corona, California manufacturing facility.



Ford Powerstroke