L5P / L5D Stealth Mach 2 67mm Turbo (2024- 2025)

The L5P/L5D Stealth Mach 2 Turbo
The Ultimate drop-in turbocharger upgrade for 2024-2025 L5P Duramax's is here! Capable of supplying up to 750HP worth of air flow, The Stealth Mach 2 was designed with all out performance and easy tuneability in mind. The Mach 2 features the latest advancemnts in compressor wheel design and sports a larger and higher flowing turbine for a dramatic improvment to exhaust energy capture and high RPM EGTs.

Say goodbye to lengthy tuning and multiple tune revisions. With the Stealth Mach 2, you’ll enjoy one of the easiest tuning experiences possible, thanks to clear, tailored instructions that ensure you and your tuner know exactly how to dial in this turbo in for peak power and performance.



Airflow to support 750HP
Up to 625 RWHP with stock emissions equipment and basic supporting mods
Tested in competition setups with extensive supporting mods to make 750+ RWHP
Custom Billet Compressor Wheel
67mm 11-Blade extended tip billet compressor wheel
Provides a wide efficiency range
Less surge prone than other compressor wheel designs
Lightweight and high strength
Provides 81 lbs/min mass airflow compared to 60lbs/min stock
Custom 9-Blade Turbine Wheel
Larger than stock
More agressive blade angle for better exhaust energy capture
Sized to maximize throttle response for 750hp capability
50% Thicker turbine blades for added heat tolerance
Lower drive pressure under high loads
Lower EGT's under high loads
Boosts effectiveness of compressor wheel upgrade
Produces a distinctive Stealth turbo whistle
Custom Vane Cage
Allows the fit of larger custom turbine wheel
Lighter Rotating Assebmly Than Stock
Provides snappy spool-up comparable to facotry turbo
Precision balanced in-house
Brand New parts and electronics
No Core Charges

This Turbo is Designed for you if you...
Want maximum power with great street performance
Want a turbo that's easy to tune
Have reliable performance as your top priority
Have a modified fuel system
Want more power with excellent street performance


Add on a Stealth Boost Tester.

Boost leaks can kill diesel engines. They cause higher EGTs, decrease your power, and lower fuel economy. Properly being able to test your entire charged air system is essential to getting peak performance and longevity out of your diesel engine. Charged air systems include everywhere from the turbocharger to the intake manifold. Your intercooler system, Exhaust Gas Recirculation components, and even the Turbocharger compressor cover can all develop boost leaks. This boost tester is exactly what you need if you work on diesel trucks regularly or just want to check the condition of your engine's charge system. Here's what you can get:

Heavy Duty Regulator
Extremely Accurate
Testes Entire Charge system
Precise control over test conditions
Easy to use and read
Premium parts built to last for a lifetime
High-quality seals
Liquid gauge prevents erratic readings
Metal construction
CNC Precision-Cut Adapter
Perfect Fitment
Clean look
Intelligent design
Made from high-quality materials
Made and assembled in the USA

Important Notice:
This turbo must only be operated with tuning that uses stock Minimum and Maximum Vane Position tables. Failure to do so can lead to excessive exhaust pressure and boost which may shorten the life of the turbo or engine and may void the turbo warranty.

Damage caused as a result of non-stock vane position tuning modifications will be the responsibility of the owner, not Calibrated Power Solutions Inc. If you have any questions or concerns please contact CPS at 815-568-7920.


Warranty: All Stealth Series turbos offer our Unlimited Mile, 1-year manufacturer warranty for quality and craftsmanship. For warranty inquiries please contact sales@duramaxtuner.com


View The Vehicle Emissions Testing Report: Click Here

The 2024-2025 L5P / L5D Stealth Mach 2 Turbo by Duramaxtuner.com is specifically designed for the 2024 and 2025 Chevy Silverado and GMC Sierra 2500, 3500, 4500, 5500, and 6500 models as well as 2024+ International CV (Medium Duty) models. It replaces OEM Part #s 12709701044, 11547786, 12683985, 12689094