KC 300X Stage 3 66mm/73 Turbo KC Turbos (300231) for Early 1999 Powerstroke 7.3L

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The KC 300X Stage 3 66mm/73 Turbo by KC Turbos is a performance upgrade for Early 1999 Ford Powerstroke 7.3L diesel engines. Featuring a 66mm compressor and 73mm turbine wheel, it offers improved airflow, faster spool-up, and greater horsepower, making it ideal for towing and enhanced throttle response. Designed for modified engines with supporting upgrades, it delivers high boost levels, durability, and aggressive performance for serious enthusiasts.

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Total: $1,290.00
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Description

The KC 300X Stage 3 66mm/73 Turbo (300231) by KC Turbos is a high-performance upgrade designed specifically for the Early 1999 Ford Powerstroke 7.3L diesel engine. Engineered to deliver significantly improved airflow and quicker spool-up compared to stock turbos, this turbocharger features a 66mm compressor wheel and a 73mm turbine wheel, making it ideal for enthusiasts seeking enhanced towing power, throttle response, and overall horsepower. The Stage 3 variant is built for durability and performance, supporting higher boost levels and optimized for modified engines with supporting upgrades like injectors, tuning, and exhaust systems. Perfect for drivers looking to push their 7.3L Powerstroke to the next level, the KC 300X offers a blend of reliability and aggressive performance.

Additional information
Weight 38 lbs
Dimensions 13 × 13 × 14 in
Fitment

Fitment

Early 1999 Powerstroke 7.3L

Features

Features

  • 100% Drop-In Turbo: No modifications required for installation.
  • 4″ Ported Housing with Anti-Surge Technology: Features drilled anti-surge holes for optimal airflow and performance.
  • 66mm SXE-Style Compressor Wheel: Extended tip technology for increased efficiency and power.
  • 73mm SXE-Style Turbine Wheel: High-flow turbine design for quicker spool and improved exhaust flow.
  • Big Head Wastegate Actuator: Provides elevated boost control for enhanced performance.
  • High-Flow Deleted EBPV Outlet Flange: Improves exhaust flow and efficiency.
  • Reliable Journal Bearing Design: Rebuildable for long-term durability.
  • Complete Kit: Includes all necessary gaskets, O-rings, and a new 4″ intake boot for easy installation.

Injector Recommendations:

  • Recommended Injectors: 238cc/80%
  • Minimum Injectors: 180cc/30%
  • Maximum Injectors: 250cc/100%

Proven Performance: This turbo has been torture-tested for longevity and has proven itself both on the dyno and at the race track. It’s ideal for those seeking to push their engine’s capabilities while maintaining reliability.

Exhaust Brake Compatibility: Some exhaust brakes may cause clearance or performance issues due to excessive back pressure. It is the customer’s responsibility to verify fitment and functionality.

If you’re ready to boost your 7.3 Powerstroke’s performance, the KC Turbo 66mm SXE is the perfect upgrade for high-flow power and reliability.

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About brand
KC Turbo builds turbochargers for diesel trucks that need more airflow and power. The company focuses on strong performance and dependable towing capability. KC Turbo products support daily driving, towing, and performance use. KC Turbo designs turbochargers to improve throttle response and top-end power. Their turbos maintain drivability while supporting higher boost levels. This helps trucks perform under load without sacrificing reliability. Diesel owners trust the brand for proven turbo upgrades. Whether towing heavy loads or pushing performance limits, these turbos deliver consistent and reliable results.
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