Tuner DM1MO1070203000 Stealth 64 Turbo | 2020-2023 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

Features:

• Supports up to 700 horsepower airflow
• Makes 650 RWHP with stock emissions
• Drop-in fit for 2020–2023 L5P Duramax
• No core charge, all new components
• Billet 11-blade compressor wheel
• 74 lbs/min airflow vs. 60 stock
• Oversized turbine for lower drive pressure
• No surge, even when towing or lugging
• Retains factory exhaust brake function
• Improved EGT control under heavy load
• Pre-calibrated actuator included
• Works with stock or custom tuning

This Turbo Gives Your L5P More Of Everything

If you’ve been wanting more power, faster spool-up, and better towing confidence without giving up everyday reliability, the Stealth 64 Turbo is built for you. This drop-in upgrade transforms your 2020–2023 L5P Duramax by offering clean, usable power you’ll feel right away. Whether you're running basic bolt-ons or starting to step into custom tuning, this turbo wakes up the truck without making it temperamental. With up to 650 rear-wheel horsepower possible while keeping emissions equipment in place, it’s a smart choice for daily drivers, tow rigs, and weekend warriors. It spools fast, sounds aggressive, and never surges, even when lugging uphill with a trailer behind you. You don’t need to tear apart your setup or chase endless upgrades to enjoy the gains this turbo delivers. It bolts right in, includes a pre-calibrated actuator, and doesn’t require a core. If you're chasing more power but still want street manners, the Stealth 64 checks every box.

Built With Flow And Efficiency Where It Matters Most

The Stealth 64 Turbo is designed with advanced engineering that improves performance in all the right places. It features a custom 11-blade billet compressor wheel capable of pushing 74 pounds per minute of airflow, compared to the stock turbo’s 60. Paired with an oversized turbine wheel and a taller vane assembly, it creates lower drive pressures and improved exhaust gas control under high load. The result is cooler EGTs, better towing efficiency, and throttle response that feels clean and immediate. High Flow Vane technology is built into the custom nozzle ring assembly, allowing the turbo to perform well across a wide operating range without sacrificing boost control. The 10-blade turbine also produces a deeper, more aggressive exhaust tone without overwhelming cabin comfort. Built from brand new GM and BorgWarner components, this turbo includes a pre-calibrated actuator and requires no core charge. It’s compatible with stock tuning tables, but custom tuning is recommended for full performance and long-term durability.

Fits: 2020, 2021, 2022, 2023 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

Notes:

• Fits 2020–2023 Silverado/Sierra 2500HD and 3500HD with 6.6L L5P Duramax.
• Turbo actuator is included and pre-calibrated.
• Actuator must be re-learned after installation.
• No core charge, turbo is 100% new, not remanufactured.
• Compatible with stock emissions, no deletes needed.
• Custom tuning is strongly recommended for best results.
• Works with stock tuning if vane tables remain unchanged.
• Altering minimum or maximum vane tables may void warranty.
• Built from genuine GM and BorgWarner components.
• Professional installation is recommended for optimal performance.
• Capable of 650 RWHP with basic supporting mods.
• Tested to support 700+ HP with full build setups.