The Diamond Eye K4319S-TD is a 4-inch turbo-back exhaust for a 1999–2003 7.3 Powerstroke pickup. The TD is a turn-down. The pipe exits under the truck instead of out the side. It is T409 stainless with the muffler.

It replaces the system from the turbo back in mandrel-bent T409 and uses the factory hangers. The muffler is included, a deeper tone without a straight-pipe bark. It is for an automatic, non-catalyst truck. It is not for sale in California. A side-exit kit is a different part.

It fits 1999–2003 F-250 and F-350 pickups, all cab and bed lengths. It does not fit an Excursion, a van, or a cab-and-chassis.

Fitment

• 1999–2003 Ford 7.3L Powerstroke
• F-250 and F-350 pickups
• 4-inch T409 turbo-back
• Muffler included
• Underbody turn-down exit
• Automatic, non-catalyst
• Not for sale in California
• Does not fit an Excursion or a van

If you want the tip out past the bed, this is the wrong kit. This one dumps under the truck.