Transform your factory Garrett TP38 turbocharger into a significantly more efficient and responsive unit with the SWAG Performance 66/88 TP38 Compressor Housing Upgrade Kit. Designed specifically for the 1994.5-1997 OBS 7.3L Powerstroke, this complete upgrade replaces the restrictive factory 60/80mm compressor assembly with a larger 66/88mm forged billet compressor wheel, matched to a precision-machined 3.5" ported anti-surge compressor housing.
The result is faster spool-up, increased airflow, improved throttle response, reduced compressor surge, and lower exhaust gas temperatures under load. This upgrade is ideal for daily drivers, towing applications, and performance-oriented trucks running stock or upgraded injectors.
Unlike many economy kits, the SWAG Performance kit includes a complete turbo rebuild package featuring an upgraded 360° thrust bearing, premium journal bearings, seals, O-rings, and hardware to properly rebuild your TP38 turbo during installation. A larger 3.5" inlet boot is also included to match the upgraded compressor housing.
Whether you're rebuilding a worn turbo or looking for a noticeable performance improvement without replacing the complete turbocharger, this kit delivers exceptional value and reliability.
Features
- Direct-fit upgrade for factory Garrett TP38 turbochargers
- Forged CNC-machined 66/88 billet compressor wheel
- Precision-machined 3.5" ported anti-surge compressor housing
- Reduces compressor surge and turbo flutter
- Faster turbo spool-up and improved throttle response
- Increased airflow over the factory 60/80 compressor wheel
- Helps reduce exhaust gas temperatures (EGTs)
- Complete rebuild kit included
- Upgraded heavy-duty 360° thrust bearing
- Premium journal bearings and seals
- Excellent upgrade for towing, daily driving, and performance applications
- Supports future injector and tuning upgrades
Kit Includes
- 66/88 Ported Compressor Housing
- CNC Billet 66/88 Compressor Wheel
- Compressor Back Plate
- Complete Turbo Rebuild Kit
- Upgraded 360° Thrust Bearing
- Thrust Collar
- Thrust Spacer
- Journal Bearings
- Journal Bearing Spacer
- Compressor & Turbine Piston Rings
- Back Plate O-Ring
- Housing Seals
- Oil Feed O-Rings
- Oil Drain O-Rings
- Mounting Hardware
- 3.5" Turbo Inlet Boot
Benefits
✔ Faster spool-up
✔ Increased horsepower and torque potential
✔ Improved airflow and boost efficiency
✔ Reduced turbo surge
✔ Lower EGTs while towing
✔ Stronger forged billet compressor wheel
✔ Improved turbo durability during high-boost operation
✔ Cost-effective upgrade without purchasing a complete turbocharger
Important Notes
- Fits factory Garrett TP38 non-wastegated turbochargers found on 1994.5-1997 OBS Powerstroke trucks.
- Not compatible with 1999.5-2003 GTP38 turbochargers.
- Installation requires the included 3.5" inlet boot due to the larger compressor housing.
- Professional installation and turbo balancing procedures are recommended when rebuilding turbochargers.
Why Choose SWAG Performance?
SWAG Performance products are engineered for diesel enthusiasts who expect OEM-level fitment with performance-driven improvements. Our TP38 upgrade kit combines premium materials, precision machining, and proven turbocharger upgrades to deliver dependable power, improved drivability, and long-term reliability without the cost of a complete turbo replacement. The larger 66/88 billet compressor wheel, anti-surge housing, and upgraded 360° thrust bearing are a proven combination for improving airflow, reducing surge, and enhancing overall turbocharger performance. Features such as the 66/88 billet wheel, 3.5-inch anti-surge housing, and 360° thrust bearing are common performance upgrades for TP38 turbochargers.
Recommendation - OBS 7.3L Cold Air Intake | Powerstroke BHAF Intake Upgrade | Swag Performance Parts
Recommended Upgrade – Maximize Your Turbo's Performance
Complete Your Airflow Upgrade!
Your turbocharger can only perform as well as the air feeding it. Pair this SWAG Performance 66/88 TP38 Turbo Upgrade Kit with our SWAG Performance OBS Cold Air Intake System featuring the Donaldson BHAF filter to maximize the benefits of your new billet compressor wheel.
The larger 66/88 compressor housing is designed to move substantially more air than the factory setup. Our high-flow intake system helps supply that additional airflow with less restriction, allowing your upgraded turbo to operate more efficiently.
Benefits of adding the SWAG Performance OBS Cold Air Intake:
- Increased airflow to complement the 66/88 billet compressor upgrade
- Faster turbo spool and improved throttle response
- Reduced inlet restriction compared to the factory intake assembly
- Helps support lower exhaust gas temperatures (EGTs) under load
- Excellent upgrade for towing, daily driving, and performance applications
- Features a premium BHAF high-flow air filter
- Direct-fit for 1994.5-1997 Ford 7.3L Powerstroke pickups
For the best overall results, we highly recommend installing this cold air intake at the same time as your turbo upgrade. Together, these components create a more efficient airflow path from the air filter to the turbocharger, helping you get the most from your investment while leaving room for future performance upgrades.
