Description
Discontinued
Fits
Year | Make | Model | Engine |
1999 - 2003 | Ford | Super Duty | 7.3L Powerstroke |
Flo - Pro Exhausts fit all wheelbase and cab configurations unless noted otherwise.
The FLO 631 is a 5' Turboback Exhaust System for 1999 - 2003 Ford F - Series with a 7.3L Powerstroke Engine. It comes with all the necessary clamps, pre - welded contour - bent hangers, and stronger flanges for easy installation. Replace your restrictive factory exhaust with this high - flow 5' system. It not only sounds great but also boosts torque, improves fuel mileage, and enhances throttle response!
Part Number: FLO 631
Features
- 5' Turbo Back Exhaust
- More Torque and Better Fuel Mileage
- Choose from Aluminized or Stainless Steel
- Single Rear Exit
- High - Flow Muffler Included

Using this FLO 631 exhaust system is straightforward. First, make sure your vehicle is a 1999 - 2003 Ford F - Series with a 7.3L Powerstroke Engine. The exhaust comes with all the needed parts like clamps, hangers, and flanges for easy installation. Just follow the included instructions to replace your old exhaust system. As for maintenance, regularly check the clamps and hangers to make sure they're tight. If you chose the aluminized steel option, expect it to rust over time, so you might want to apply a protective coating. For the stainless - steel option, it's more resistant to corrosion, but still, give it a visual inspection now and then. And be careful when driving on rough roads to avoid hitting the exhaust and causing damage.