L5P / L5D Stealth Mach 2 (67) Turbo (2020-2023)

$3,500.00

L5P / L5D Stealth Mach 2 (67) Turbo (2020-2023) – Maximize Power and Efficiency
Experience superior performance with the L5P Stealth 67G2, the ultimate drop-in turbo for 2020-2023 6.6L L5P Duramax engines. Designed for seamless installation, this stock-appearing turbo delivers exceptional airflow, supporting up to 800 RWHP while maintaining quick spool-up for optimal daily driving, towing, and peak performance.

– High Flow Vane (HFV) Technology – Proprietary HFV customization enhances the variable vane cage and nozzle ring assembly, ensuring faster spool times and superior high-load efficiency.
– Optimized Airflow – With an oversized turbine wheel and billet compressor wheel, this turbo increases power across a wide operating range.
– Lower EGTs & Better Engine Management – Improved exhaust flow enhances EGT management, reducing strain on your engine during demanding applications.
– Core-Free Installation – Built entirely from new components, eliminating the need for a core charge.
– Pre-Calibrated Actuator (Optional) – Available with a pre-calibrated actuator for plug-and-play installation.

For optimal performance, custom tuning is strongly recommended. This turbo supports emissions-equipped builds, achieving up to 650 RWHP when paired with custom tuning—no emissions deletions required.

$3,500.00

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L5P / L5D Stealth Mach 2 (67) Turbo (2020-2023)

Why Choose the L5P / L5D Stealth Mach 2 (67) Turbo?

High-Flow Performance – Designed to support airflow for up to 800HP.
Enhanced Power Gains – Achieves up to 650 RWHP with stock emissions equipment and basic supporting modifications.
Advanced HFV (High Flow Vane) Technology – Custom vane and nozzle ring assembly provide superior high-load efficiency.
Factory Compatibility – Retains the factory exhaust brake while delivering improved throttle response for towing and daily driving.

Performance & Specifications

Power Gains: Supports up to 800+ RWHP with competition setups.
Airflow Efficiency: Provides 81 lbs/min mass airflow compared to 60 lbs/min stock.
Compressor Wheel: Custom 67mm, 11-blade billet aluminum wheel for lightweight durability and extended efficiency range.
Turbine Wheel: Oversized custom wheel with a 10-blade design, enhancing exhaust efficiency and delivering a distinct sound.
Electronics & Components: Brand-new parts and electronics, eliminating core charges.
Compatibility: Designed for 2020-2023 Chevy Silverado and GMC Sierra 2500/3500 models. Replaces OEM Part #s 12709701044, 11547786, 12683985, 12689094.

Ideal For:

Truck owners integrating custom tuning for peak performance.
Daily drivers seeking a balance of reliability and power.
Towing applications, ensuring strong performance under heavy loads.
Enthusiasts looking for increased horsepower without sacrificing drivability.

Additional Considerations

Do You Need an Actuator?

The L5P actuator has a low failure rate and is well-cooled, reducing the chances of heat-related damage.
If you’re not experiencing actuator-related error codes or damage, retaining the factory actuator is recommended.

Boost Leak Prevention (Optional Add-On: Stealth Boost Tester)

Boost leaks can negatively impact engine performance, leading to increased EGTs, power loss, and reduced fuel efficiency. The Stealth Boost Tester is designed for precise testing of the entire charge air system. Features: – Heavy-Duty Regulator – Accurate pressure control. – Precision CNC-Cut Adapter – Ensures a perfect fit and leak-free testing. – High-Quality Construction – Premium seals, metal build, and a liquid gauge for reliable readings.

Important Notice

This turbo features a customized nozzle ring and/or shroud plate for optimized performance.
It must be used with tuning that retains stock minimum and maximum vane position tables.
Failure to use stock vane position tuning could lead to excessive exhaust pressure and boost, which may shorten the lifespan of the turbo or engine and void the warranty.