There's nothing better than upgrading your parts instead of just replacing them. That's why the Stealth STR is the perfect stock turbo replacment for your 2017-2023 Chevy Silverado/GMC Sierra 2500/3500/4500/5500 6.6L L5P or L5D Duramax. It combines the affordability of a stock turbo replacement with some of the best durability and performance upgrades you can get in a drop-in L5P or L5D turbocharger. Whether you’re looking for a durable replacement or simply a do-it-all kind of turbo that will outperform stock the STR delivers.
Airflow to support 625 RWHP
41 psi boost @ Sea Level
Provides 65 lbs/min mass airflow compared to 60lbs/min stock
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
Featuring the latest advancements in compressor wheel technology
Air Grabber (ETT) Technology for 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
Absolutely no core charges!
Brand new parts and accessories
Brand new actuators available
1-year warranty on all of our turbos
Extended warranties available
Live U.S. phone based customer support team
See The Results For Yourself!
1. This graph comparison shows the difference that Banks Derringer Tuning makes compared to stock, as well as compared to Banks Derringer Tuning paired with the L5P Stealth STR turbo
2. This graph shows the improvement in power and torque that can be achieved by simply adding the Stealth STR without any tuning installed.
3. This graph shows the power improvement difference between the STR paired with stock, Banks Derringer, and Calibrated Power Custom Tuning.
MADE IN THE USA!
Our manufacturing and assembly process has been proudly located in the United States since the very first turbocharger we ever made. All research and testing are done in-house by industry experts. Your brand-new turbocharger will be handled by enthusiasts at every step of the process.
Your new turbocharger will come ready for installation. Our rigorous inspection and quality assurance procedures ensure the premium quality that Stealth turbochargers are known for.
Why Choose a Stealth?
Reliability
Your Stealth turbo will go through a rigorous testing and quality control process before being shipped out. Every aspect that impacts the life of your new turbocharger is stringently gone through.
Peak Power
Stealth turbochargers provided superior performance. You can trust that every aspect of your Stealth turbo is engineered to achieve the highest levels of performance. When power matters, go with Stealth.
Driveability
Peak power only matters once and a while. Driveability makes a difference every day. Your Stealth turbo is going to spool-up quick and come to life when you need it.
Fitment
To ensure a perfect fit every time we use brand-new, factory-built turbochargers and then modify the internals to achieve the performance you're looking for.
Which L5P Stealth Turbo is Right for You?
L5P Stealth STR
This Turbo is Designed for you if...
You're using a box tuner or no tuning at all
Daily drive your truck
Reliability is your top priority
Tow frequently and/or near GVW with your truck
Commonly operate the truck at higher levels of elevation
$1,950
L5P Stealth 64
This turbo is designed for you if...
Already have, or plan on installing custom tuning
Daily drive your truck
Have reliability and performance as top priorities
Tow occasionally with your truck
Want more power and excellent street manners
$3,100
L5P Stealth 67G2
This turbo is designed for you if...
Already have, or also installing custom tuning
Daily drive your truck
Have performance as a top priority
Tow rarely with your truck
Compete with your truck or just like to party!
$3,500
What They're Saying
"I upgraded the turbo in my L5P with a STR... and I have to say it’s a completely different truck now. Power is there when I want and it tows great! EGTs are lower than they were before and I get better mpg."
Brad Willard
"High-quality product. Fit great and their boost tester helped a lot!"
Danny Kremer
“Good product, easy install. Called [...] with a few questions and they were happy to help.”
Josh P.
