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Duramax Tuner

DURAMAX TUNER STEALTH MACH 1 (64) TURBOCHARGER WITHOUT ACTUATOR DM1JK1070203000

DURAMAX TUNER STEALTH MACH 1 (64) TURBOCHARGER WITHOUT ACTUATOR DM1JK1070203000

DM1JK1070203000

$3,100.00 USD

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Upgrade your GM 6.6L Duramax L5P/L5D with the Stealth Mach 1 (64) Turbo, the ultimate drop-in performance turbo for the Silverado and Sierra. Designed for daily driving, towing, and high-performance applications, this turbo delivers exceptional airflow while maintaining a stock appearance.

With High Flow Vane (HFV) technology, the Stealth 64 features a larger turbine wheel, optimized vane and nozzle ring assembly, and a billet compressor wheel. This setup improves spool times, increases power output, and maintains safe exhaust gas temperatures under load. Capable of supporting up to 700 RWHP, it provides immediate throttle response and strong performance across a wide operating range.

Key Features:

  • Larger-than-stock 64mm 11-blade turbine wheel
  • High Flow Vane (HFV) nozzle ring for maximum high-load efficiency
  • Custom billet compressor wheel for improved airflow and durability
  • Boost up to 41 PSI at sea level
  • Supports up to 650 RWHP with basic bolt-on modifications
  • 74 lbs/min mass airflow (vs 60 lbs/min stock)
  • Thicker turbine blades for high-temp reliability
  • Larger inducers and taller, wider vanes for fast spool and high-load performance
  • Distinctive 10-blade exhaust produces aggressive Stealth turbo sound
  • All-new components – no core charge required

Why Choose the Stealth Mach 1 (64)?

This turbo is engineered to maximize performance without compromising reliability. By relocating and optimizing the vane and nozzle ring assembly, your Duramax gains faster spool, higher airflow, and better power across the RPM band. Built from high-strength superalloy materials, the Stealth 64 handles extreme conditions with ease, making it perfect for towing, performance builds, or daily drivers looking for a dependable power upgrade.

Installation Notes:

  • Direct bolt-on replacement – no modifications required
  • Maintains factory compatibility with fuel lines and turbo mounts
  • Works seamlessly with stock calibration – no tuning required
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