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 650 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.
This turbo is designed for you if you...
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!
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