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2017-2023 L5P Duramax Stealth STR Drop In VGT Turbo

DM1JK1070103000, DM1MO1070103000
- Proven to support up to 625 RWHP with stock emissions
- Gain +50hp without any tuning installed on the vehicle
- Works great with box tuners, custom tuning, or without tuning
- Lower average EGTs and better overall EGT control
- Built to last with more durable components
- Lighter rotating assembly than stock
- Lightning fast spool-up and immediate throttle response
- Loud turbo whistle from 9-blade turbine
- Zero surge even when towing heavy loads
- Brand New Parts - No core charges
Availability: Raw in stock and ships in 3-5 business days. 10-15 business day lead time on powder coat.
Shipping: This Product cannot ship to the state of California
NOTE: This product has the following shipping restriction(s):
  • This product cannot be shipped to California
Pricing: $1,825.00

Customize Your Item

- Model Year -
 * required
- Powder Coating -
 * required
- Up Pipe Kit -
 * required
- Fastener Type -
 * required
- Gasket Kit -
 * required
- New Turbo Actuator -
 * required
- VGT Exhaust Housing Finish -
 * required
NOTE: This product has the following shipping restriction(s):
  • This product cannot be shipped to California


The L5P Stealth STR is the best replacement turbo for your stock 6.6L L5P or L5D Duramax. While capable of providing enough airflow to support up to 625 RWHP, this stock-appearing unit still lights quickly and is great for daily driving, towing, and while providing better than stock performance.

If you have been looking at other "64mm", "Stage 1",  or stock turbo replacements this is a game changer. This turbocharger does not need custom tuning or other upgrades to get superior performance. Box programmers and inline modules work seamlessly with the L5P Stealth STR. 

Don't be fooled by the imitators! Calibrated Power Solutions / Duramaxtuner have been building custom turbos and providing custom tuning for more than 15 years. They were the first custom tuners to work on the L5P Duramax platform together with us and know exactly what these trucks need to go to the next level. 

Package includes:

  • 625 RWHP Capable
  • Up to 600 RWHP verified with stock emissions equipment and basic supporting mods
  • Fits 2017-2022 Duramax L5P. Also compatible with 2019+ L5D.
  • 100% Stock Appearing Drop-In
    • Completely bolt-on (fits just like your factory turbocharger)
  • Custom Billet Compressor Wheel - 11-blade design provides a wide efficiency range allowing users to tow without risk of surge.
  • 70 lbs/min of Air Flow vs 60 lbs/min stock
  • New Assembly - NO CORE CHARGE
  • Fully Functional Exhaust Brake
  • Quick Spool-Up = Useable Horsepower
  • Best Stock Replacement Drop-In Turbo Option - No Tuning Required, Compatible with Box Tuners, great drivability and towing with better than stock performance
  • 12 month Warranty

This turbo is designed for you if you...

  • Already have, or plan on installing custom tuning
  • Daily drive your truck
  • Have Reliability and Performance as top priorities
  • Tow with your truck
  • Want More Power and excellent street manners!


If you're wondering whether or not you should buy an actuator to compliment your Stealth turbo, allow us to share our thoughts.  The L5P actuator has a very low failure rate in the field.  The fact that it's well-cooled and not in close proximity to the hot parts of the turbo means that it's out of harm's way.  Unless you're experiencing codes that indicate actuator issues or know for a fact that your actuator is somehow damaged, we would suggest saving your money and retaining your factory actuator.

Replaces the following GM Part #s: 12709701044, 11547786, 12683985, 12689094

Want more power? Check out the Stealth 64 and Stealth 67!


Shipping Information

  • Item Requires Shipping
  • 50.0 lbs.
  • W15.0000” x H15.0000” x L15.0000”
  • This item ships in its own box.
  • This Product cannot ship to the state of California

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