Calibrated Power - 2011-2016 LML Duramax Stealth Mach 2 67/70 Drop In Turbo - CPS200354

The LML Stealth Mach 2 67mm turbo is a stock appearing, direct replacement for the 2011-2016 LML Duramax. The upgraded billet compressor & extra-large turbine wheel are perfectly matched to Calibrated's custom cut compressor cover and exhaust housing.

This turbocharger features High Flow Vane (HFV) technology, a proprietary customization of the variable vane cage and nozzle ring assembly. This advancement allows the use of a larger 70.4mm turbine wheel for maximum high-load efficiency. Stealth turbos featuring the HFV upgrade are capable of producing more power, spooling up quicker, and managing EGTs better than other turbochargers limited with factory nozzle rings.

Your truck is going to experience increased performance across a wide operating range due to the HFV assembly, oversized turbine wheel, and billet compressor wheel. Built from brand new parts, this turbocharger does not require a core charge. Turbo comes ready for installation. You should strongly consider custom tuning to go with this turbocharger upgrade.

The Stealth Mach 2 67 VGT is an easy to install upgrade that spools up quickly, controls EGT's under heavy load, allows turbine / exhaust braking during towing scenarios, and kicks ass when leaned on. Building this line of Stealth's meant designing a turbo that would be safe to tow with, fun to drive every day and perform at competitions. If you think street-able, clean, stock-appearing power is cool then this is the turbo for you!

This custom 67mm compressor is milled out of high strength 7075 Aluminum. Its TCT design is engineered to maximize peak power. To fit that wheel Calibrated developed a unique, OEM appearing, anti-surge equipped compressor cover. Redesigning the compressor to maximize power and driveability meant pouring over every detail of from MWE groove width and placement to diffuser clearance and shape.

The LML Stealth Mach 2 67 center section is fitted with a 360 degree thrust bearing and features liquid cooling to increase reliability and minimize thrust wear during competition use.

The turbine side innovation rivals the compressor side. The Mach 2 turbine dwarfs the factory turbine and the Garrett 4094VA in every way. The turbine inducer is taller, allowing much higher flowing vanes which are actuated with a matched unison ring. The LML Stealth Mach 2 67 features the largest turbine and vanes available in this frame. Increasing turbine size dramatically reduces drive pressure under heavy load, helping you achieve nearly a 1:1 drive to boost ratio under most operating conditions. Controlling drive pressure helps make more power and significantly lowers EGT's.

Package includes:

• Airflow to support 800HP
  
  • Up to 650 RWHP with stock emissions equipment and basic supporting mods
  • Tested in competition setups with extensive supporting mods to make 800+ RWHP

• Custom Billet Compressor Wheel
  
  • 67mm - 11 Blade Extended Tip Billet 2618 Aluminum Alloy Compressor Wheel
  • Provides wide efficiency range allowing users to tow without risk of surge
  • Lightweight and high strength
  • Provides 81 lbs/min mass airflow compared to 60lbs/min stock

• Oversized Custom Turbine Wheel
  
  • 70.2mm - 10 Blade 713C - Nickel Alloy Turbine Wheel
  • Low drive pressures at high load
  • Efficiency improved to better control EGT
  • 10 blade design produces distinctive exhaust sound

• HFV (High Flow Vane) Technology
  • Custom Vane/Nozzle Ring Assembly
  • Exclusive design produced in-house specific to this application
  • Taller and wider vanes (11mm) match larger turbine to provide superior high-load efficiency
  • Retain factory exhaust brake and quicker throttle response

• Brand New Parts and Electronics
  • Brand new turbocharger, no core required
  • 12 month warranty

Replaces the following OEM Part numbers: 848212-5002S, 12642314, 12642129, 800799-0002, 800799-0003, GT3788VA, Garret 3788

Supersedes model DM1DH1070303000