Fitment: 2017-2019 GM 6.6L DURAMAX L5P
Order your upgraded turbo today! The L5P Stealth STR is the best replacement turbo for your stock 2017, 2018, and 2019 6.6L L5P Duramax. While capable of providing enough airflow to support up to 650 RWHP, this stock-appearing unit still lights quickly 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
64mm, 11-Blade wheel
Wide efficiency range
Allows you to tow without the risk of surge
Lightweight and high strength
Provides 70 lbs/min mass airflow compared to 60lbs/min stock
No Surge (Even when lugging)
Brand New Parts
No Core Charges
Built from OEM quality parts
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!
Product Return Policy
Some Circumstances in which credit will not be issued but not limited to:
Core Return Instructions: STOP! Please read to avoid costly delays!
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Core refund acceptance is at the discretion of SUP and the manufacturer/remanufacture or the original product. Failure to follow the above policy may result in partial credit and/or no credit being issued. If you would like a core returned that has been denied acceptance, you may request that within 30 days and pay for return shipping. Cores that have not been accepted and are unclaimed by the customer after 30 day will be destroyed and disposed of.
Updated 08/22/2024
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