Exhaust Housing for Ford F250 F350 F450 (1999-2003) 7.3L Powerstroke Diesel

High-Flow Turbine Exhaust Housing for 1999-2003 Ford F-250, F-350, F-450 (7.3L Powerstroke / P131)

Designed to replace restrictive factory turbo exhaust housings, this cast iron turbine outlet increases exhaust flow and effectively lowers Exhaust Gas Temperatures (EGTs) for heavy towing applications.

The Stock F-250, F-350, F-450 Turbo Restriction

The factory turbine housing on the 1999.5-2003 7.3L Powerstroke (Navistar T444E) was engineered with a conservative A/R ratio to prioritize rapid spool-up at the expense of high-end flow capacity. Under sustained loads—such as pulling a heavy fifth wheel up a grade—this restrictive factory casting causes significant exhaust backpressure. This bottleneck forces hot exhaust gases to back up into the manifold, driving up Exhaust Gas Temperatures (EGTs) to critical levels. Prolonged exposure to these excessive temperatures accelerates wear on the turbocharger internals, exhaust valves, and pistons, while also choking top-end horsepower and torque production during demanding hauling cycles.

The Engineering Solution

This direct-replacement turbine exhaust housing is manufactured from heavy-duty cast iron to withstand the severe thermal cycling of heavy-duty diesel applications. By optimizing the internal volute geometry and expanding the exhaust outlet diameter, this housing significantly improves exhaust gas velocity and volume clearance. The reduction in drive pressure allows the turbocharger compressor wheel to spin more freely, improving overall volumetric efficiency. Mechanically, this translates to drastically reduced EGTs during sustained heavy towing and a noticeable increase in mid-range to top-end performance. It is machined as a direct-fit replacement for the Garrett GTP38 turbocharger on late 1999 through 2003 models, maintaining factory mounting points while delivering upgraded flow dynamics. Includes the necessary installation bolts.

Technical Specifications

Compatibility

• 1999.5 Ford F-250, F-350, F-450, F-550 7.3L Powerstroke Diesel
• 2000 Ford F-250, F-350, F-450, F-550 7.3L Powerstroke Diesel
• 2001 Ford F-250, F-350, F-450, F-550 7.3L Powerstroke Diesel
• 2002 Ford F-250, F-350, F-450, F-550 7.3L Powerstroke Diesel
• 2003 Ford F-250, F-350, F-450, F-550 7.3L Powerstroke Diesel
• 1999.5-2003 Ford E-250, E-350, E-450 7.3L Powerstroke Diesel

The Ford Super Duty Standard

When building a 7.3L Powerstroke for heavy hauling and sustained workloads, managing thermal loads is critical. This upgraded turbine housing ensures your Super Duty maintains safe EGTs while delivering the durability, airflow, and torque required to tow heavy payloads without compromising engine longevity.