duramax tuner


Duramax Tuner L5P Stealth STR Turbos


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Product Details

Product Name: Duramax Tuner L5P Stealth STR Turbos
Manufacturer: Duramax Tuner
Thoroughbred Diesel Part #: DUTL5PSTEALTHSTRTURBOS
Fitment Notes: 2017-2021 GM Duramax L5P

Order your upgraded turbo today! The L5P Stealth STR is the best replacement turbo for your stock 2017-2021 6.6L L5P Duramax. While capable of providing enough airflow to support up to 650RWHP, this stock-appearing unit still lights quick and is great for daily driving, towing, and putting Powerstrokes in their place.

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! We've been building custom turbos and providing custom tuning for more than 15 years. We were the first custom tuners to work on the L5P Duramax platform and know exactly what these trucks need to go to the next level. 

  • Airflow to support 650HP
    • Up to 600 RWHP with stock emissions equipment and basic supporting mods
    • Want more power? Check out the L5P Stealth 64 or L5P Stealth 67G2
    • 41 psi boost @ Sea Level
  • Custom Billet Compressor Wheel
    • 11-Blade wheel provides a wide efficiency range allowing users to tow without risk of surge
    • Lightweight and high strength
    • Provides 74 lbs/min mass airflow compared to 60lbs/min stock
    • No Surge (Even when lugging)
  • Brand New parts and electronics
    • No Core Charges
    • Built from New Genuine GM/Borg units
  • Designed and spec'd by Tuners
    • Easy to tune (no tuning required)
    • Works with box tuners

This Turbo is Designed for you if ...

  • You are using a box tuner or no tuning at all
  • Daily drive your truck
  • Have Reliability and Performance as top priorities
  • Tow with your truck
  • Want More Power and excellent street manners!


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