There's nothing better than upgrading your parts instead of just replacing them. That's why the Stealth STR is the perfect upgrade for your GM 2500/3500 L5P and L5D Duramax. It combines the affordability of a stock turbo replacement with some of the best upgrades you can get in a drop-in L5P or L5D turbocharger. Whether you’re looking for more power or simply a do-it-all kind of turbo with some added durability the STR delivers.
FEATURES
63mm Air Grabber Compressor Wheel
- Air flow to support 625rwhp (dynojet) with emissions in-tact
- 7-blade design provides higher airflow than stock
- 63mm sizing for peak weight to efficiency optimization
- Lighter wheel design provides unmatched spool-up
- Recessed "Super Back" design provides added weight reduction
- Featuring the latest advancements in compressor wheel design
- Air Grabber technology for even more additional airflow
- Made out of aerospace-grade billet aluminum
- Peak boost of 40+psi
65mm High Flow Inconel Turbine Wheel
- 65mm exducer compared to 62.5mm Stock
- Noticeable turbo whistle
- 9-blade design provides higher flow and lower EGTs under load
- Excellent boost to drive pressure ratio
- Better durability than stock
Rotating Assembly (Compressor and Turbine Wheels)
- 6% lighter than the stock rotating assembly
- Provides lightning fast spool-up
- Boosts turbo efficiency and lowers drive pressures
- Precision balanced in-house
Ported Exhaust Housing
- Larger exhaust port opening to match larger turbine
- Better exhaust gas flow post-turbine
- Less back pressure
Stealth Turbo Benefits
- No core charge
- Brand new parts and accessories
- Brand new actuators available
- 1-year warranty on all of our turbos
- Extended warranties available
- Live on-site customer support team here to help
This turbo is a great fit if you...
- Have reliability and performance as your top priorities
- Want immediate response and great daily drivability
- Have a Box Tuner or Custom Tuning installed on your truck
- Want to make 625+rwhp or less
- Tow with your truck often
- Have a completely stock truck (this turbo does not require tuning)
- Need a new replacement turbo for your L5P
WARRANTY INFORMATION
All Stealth Series turbos are covered by our Unlimited Mile, 1-year manufacturer warranty for quality and craftsmanship.
**THIS TURBO DOES NOT COME WITH AN ACTUATOR**
Do you need an Actuator?
If you're wondering whether or not you should buy an actuator to go along your new Stealth Turbo, here's what you should know. The 2017-2023 6.6L Duramax turbo actuator has a very low failure rate in the field. The fact that it's well-cooled and not with-in close proximity to any hot parts like 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.
View The Vehicle Emissions Testing Report: Click Here
The L5P / L5D Stealth STR Turbo by Calibrated Power is specifically designed for the 2020, 2021, 2022, and 2023 Chevy Silverado and GMC Sierra 2500, 3500, 4500, 5500 and 6500 models. It replaces OEM Part #s 12709701044, 11547786, 12683985, 12689094
There's nothing better than upgrading your parts instead of just replacing them. That's why the Stealth STR is the perfect upgrade for your GM 2500/3500 L5P and L5D Duramax. It combines the affordability of a stock turbo replacement with some of the best upgrades you can get in a drop-in L5P or L5D turbocharger. Whether you’re looking for more power or simply a do-it-all kind of turbo with some added durability the STR delivers.
FEATURES
63mm Air Grabber Compressor Wheel
- Air flow to support 625rwhp (dynojet) with emissions in-tact
- 7-blade design provides higher airflow than stock
- 63mm sizing for peak weight to efficiency optimization
- Lighter wheel design provides unmatched spool-up
- Recessed "Super Back" design provides added weight reduction
- Featuring the latest advancements in compressor wheel design
- Air Grabber technology for even more additional airflow
- Made out of aerospace-grade billet aluminum
- Peak boost of 40+psi
65mm High Flow Inconel Turbine Wheel
- 65mm exducer compared to 62.5mm Stock
- Noticeable turbo whistle
- 9-blade design provides higher flow and lower EGTs under load
- Excellent boost to drive pressure ratio
- Better durability than stock
Rotating Assembly (Compressor and Turbine Wheels)
- 6% lighter than the stock rotating assembly
- Provides lightning fast spool-up
- Boosts turbo efficiency and lowers drive pressures
- Precision balanced in-house
Ported Exhaust Housing
- Larger exhaust port opening to match larger turbine
- Better exhaust gas flow post-turbine
- Less back pressure
Stealth Turbo Benefits
- No core charge
- Brand new parts and accessories
- Brand new actuators available
- 1-year warranty on all of our turbos
- Extended warranties available
- Live on-site customer support team here to help
This turbo is a great fit if you...
- Have reliability and performance as your top priorities
- Want immediate response and great daily drivability
- Have a Box Tuner or Custom Tuning installed on your truck
- Want to make 625+rwhp or less
- Tow with your truck often
- Have a completely stock truck (this turbo does not require tuning)
- Need a new replacement turbo for your L5P
WARRANTY INFORMATION
All Stealth Series turbos are covered by our Unlimited Mile, 1-year manufacturer warranty for quality and craftsmanship.
**THIS TURBO DOES NOT COME WITH AN ACTUATOR**
Do you need an Actuator?
If you're wondering whether or not you should buy an actuator to go along your new Stealth Turbo, here's what you should know. The 2017-2023 6.6L Duramax turbo actuator has a very low failure rate in the field. The fact that it's well-cooled and not with-in close proximity to any hot parts like 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.
View The Vehicle Emissions Testing Report: Click Here
The L5P / L5D Stealth STR Turbo by Calibrated Power is specifically designed for the 2020, 2021, 2022, and 2023 Chevy Silverado and GMC Sierra 2500, 3500, 4500, 5500 and 6500 models. It replaces OEM Part #s 12709701044, 11547786, 12683985, 12689094
