The LML Stealth Mach 2 (67mm) is a stock appearing, direct replacement for your 2011, 2012, 2013, 2014, 2015, and 2016 LML Duramax. The upgraded billet compressor & extra-large turbine wheel are perfectly matched to our custom-cut compressor cover and exhaust housing.
This turbocharger features our exclusive HFV technology! HFV or High Flow Vane technology is our proprietary customization of the variable vane cage and nozzle ring assembly. This advancement allows the use of a larger turbine wheel for maximum high-load efficiency. Stealth turbos featuring our HFV upgrade are capable of producing more power, spooling up quicker, and managing EGTs better than those limited with factory nozzle rings.
Your truck is going to experience increased performance across a wide operating range due to our HFV assembly, oversized turbine wheel, and billet compressor wheel. Built from brand new parts, this turbocharger won’t require a core charge. The optional actuator is pre-calibrated and the entire turbo comes ready for installation. You should strongly consider custom tuning to go with this turbocharger upgrade. Deletes are not required. We have made up to 650 RWHP when matching this turbo with our Custom Emissions Equipped Tuning.
The Stealth Mach 2 (67) undergone testing to demonstrate that it complies with federal emissions regulations. This testing provides the reasonable basis required by the standards defined by the EPA. Here you can find a PDF that documents this testing.
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Fitment Specifications |
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Year |
OEM |
Models |
OEM Part #(s) |
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2011-2016 |
Chevy |
2500, 3500 |
§ 848212-5002S § 12642314 § 12642129 § 800799-0002 § 800799-0003 § GT3788VA § Garret 3788 § |
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2011-2016 |
GMC |
2500, 3500 |
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Measurement Specifications |
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Compressor - Wheel Inducer |
Compressor - Inducer Bore |
Compressor - Wheel Blade Count |
Turbine - Wheel Exducer |
Turbine - Wheel Inducer |
Turbine - Wheel Blade Count |
Peak Power |
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67mm |
68mm |
6 + 6 |
71mm |
78mm |
10 |
800 RWHP |
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Maximum Recommended Boost Pressure (psi) for LML Stealth 67G2 |
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Altitude (ft) |
Barometric Pressure (psi) |
Baro (inHG) |
Max Safe Boost (psi) |
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-1000 |
15.2 |
31.02 |
41.8 |
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0 |
14.7 |
29.88 |
40.4 |
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1000 |
14.2 |
28.86 |
39.1 |
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2000 |
13.7 |
27.84 |
37.7 |
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3000 |
13.2 |
26.83 |
36.3 |
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4000 |
12.7 |
25.81 |
34.9 |
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5000 |
12.2 |
24.8 |
33.6 |
All Stealth Series turbos are covered by our Unlimited Mile, 1-year manufacturer warranty for quality and craftsmanship. For warranty inquiries and specifics please email us at sales@duramaxtuner.com
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. The charged air system includes everything 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:
* We are proud to offer our 1-year Stealth Warranty.
* 49 State legal basis tested and approved - PDF documents
* Not for sale in the state of California.
Prop 65 WARNING: This product can expose you to chemicals that are known to the State of California to cause cancer. For more information, visit P65Warnings.ca.gov
