Duramax Tuner Stealth Mach 1 Turbo

Product Name: Duramax Tuner Stealth Mach 1 Turbo
Manufacturer: Duramax Tuner
Thoroughbred Diesel Part #: DUTSTEALTHMACH1
Fitment Notes: GM Duramax

The Duramax Tuner Stealth Mach 1 Turbo is a direct bolt-on upgrade for GM Duramax L5P/L5D engines, designed to deliver faster spool-up, stronger throttle response, and more efficient airflow than the factory turbo. With its 64mm compressor wheel, it balances towing capability, daily driving reliability, and moderate performance gains, making it an excellent choice for truck owners seeking more power without sacrificing drivability. Available with or without an actuator, it fits both 2017–2019 and 2020–2023 model years depending on selection.

Duramax Tuner Stealth Mach 1 Turbo Features:

• Direct-fit bolt-on replacement for GM Duramax L5P/L5D
• 64mm compressor wheel for improved airflow and efficiency
• Provides quicker spool-up and enhanced throttle response
• Great for towing, daily driving, and performance builds
• Supports higher horsepower while maintaining reliability
• Available with actuator (easy install) or without actuator (reuse stock)
• Designed for durability and long-term performance
• Maintains stock-like drivability with added power
• For more information on Duramax Tuner call us at 1-859-737-4966