Industrial Injection 229408 Boxer 58 Turbocharger Kit with Billet Blade Technology

The Industrial Injection 229408 Boxer 58 Turbocharger Kit with Billet Blade Technology (BBT) is a direct-fit, performance upgrade turbo kit built on a genuine BorgWarner S300G turbocharger platform. Designed as a bolt-on replacement for the stock Holset HX35 and HY35 turbos found on 2nd Generation 5.9L Cummins diesels, this kit delivers a significant boost in power potential without requiring a full custom turbo build.

At the heart of this kit is Industrial Injection's proprietary BBT58mm (Billet Blade Technology) compressor wheel—a slim-nose, longer-leading-edge billet unit that flows up to 10% more air than a standard cast compressor wheel. This translates to an additional 20 horsepower over the standard Boxer 58 configuration, along with noticeably quicker turbo spool-up and reduced exhaust gas temperatures (EGTs).

Key Features:

• Genuine BorgWarner S300G turbocharger base unit
• BBT58mm billet compressor wheel — up to 10% more airflow vs. cast wheel
• Aerodynamic S300G design capable of supporting up to 400 wheel horsepower
• Wide power range: supports 300–500 horsepower applications
• Rugged thrust bearing system for durability under extreme load conditions
• Quicker spool-up and lower EGTs vs. stock Holset turbos
• Compatible with stock or mildly modified fuel systems
• Includes HX40 downpipe, outlet elbow with clamp and O-ring, and oil drain hose with clamps
• Direct bolt-on replacement — no custom fabrication required

To maximize the performance potential of the S300G platform, Industrial Injection recommends pairing this kit with supporting modifications including a 4" exhaust system, high-flow air filter or cold air intake, performance chip or tuner, high-flow fuel injectors, and a boost control fitting.

Prop 65 Warning: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, visit www.P65Warnings.ca.gov.