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LB7 Stealth Series Bundle: Stage 1

Stealth Bundle Logo

LLY Stealth Series Bundle: Stage 1

LB7 Stealth Series Bundle: Stage 2

Fly Under the Radar with 600+ RWHP from the Stealth Series Bundle: Stage 2

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LB7 Stealth Series Bundle: Stage 2

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    Everything you need to make 600+ RWHP reliably.  

    Custom tuning is going to ask your truck to perform at a higher level.  This bundle includes everything you need to maintain reliability at slightly higher horsepower levels.  If you already have some of these parts you can still pick out what your truck is missing.  Or, if you are starting from stock you can just make 1 purchase to have everything you need.  

    • SPADE King
    • TCM Tuning
    • S&B Intake
    • LB7 Intake Air Horn
    • Fass 165 Lift Pump
    • Edge Insight CTS2 Monitor
    • LB7 Stealth 64G2 Turbo
    • Tie Rod Sleeves
    • EGT Probe
    • Traction Bars
    • DT550 Built Transmission
    • 6 Speed Conversion Kit

    SPADE King

    The SPADE King (Standalone Programming And Diagnostic Equipment) makes the highest quality tunes on the market available in a simple to use OBD style flash tool. The tunes represent the best in drive-ability, reliability, and power. The SPADE system is the first hardware to ship pre-loaded with tunes of this caliber.  Requires no emailing, laptop usage or other tomfoolery. 

    The SPADE has the ability to scan trouble codes and log data for analysis. The Jack SPADE is designed to maximize performance retain reliability on trucks equipped with a stock transmission.

    Power Levels for 2001-2005 Trucks

    1. Optimized Stock -Power delivery smoother than stock with near stock output -Refined timing tables for lower EGTs and higher efficiency

    2. Heavy Tow Tune* +40rwhp over stock- Refined timing tables for lower EGTs- Throttle pedal revised for simplified low-speed trailer maneuvering- Built for towing loads from 8000lbs to gross vehicle weight. 

    3. Light Tow Tune*+60rwhp over stock -Refined timing tables for lower EGTs -Throttle pedal revised for simplified low-speed trailer maneuvering -Built for towing loads under 8000lbs

    4. Sport Econ +80rwhp over stock -Best balance of power reliability and efficiency for unloaded daily driving -Low smoke output -Throttle sensitivity increased for less throttle input, quicker shifting and less average RPM in daily driving situations

    5. Stock Trans Race Tune -+100rwhp over stock –Maximum horsepower tune for stock transmission- If abused, has the potential to shorten the life of your stock transmission –Typically will run mid 14’s near 93 MPH on a truck set up for drag racing

    Using TCM tuning in conjunction with our ECM tuning yields the ultimate combo for consistency and driveability.  Our updates improve torque converter clutch engagement routines, improve shift feel, and minimize defuel.  This product is recommended on all Duramax trucks equipped with the Allison trans.

    LB7 Stealth 64G2 Turbo

    Supports up to 640RWHP! The only stock appearing, liquid-cooled, 360-degree thrust drop-in style LB7 turbo on the market today! 

    It’s still a direct drop-in, bolt-on stock appearing replacement but with features, you won’t find anywhere else. The LB7 Stealth 64G2 improves power, towing potential and overall performance through the use of a custom-designed high flow turbine assembly and 7075 billet compressor wheel.  We do all this in a liquid-cooled package protected by 360-degree thrust bearings.

    The larger turbine assembly allows for lower drive pressure, creating a better balance between boost and drive (exhaust backpressure). This improved balance under heavy load means more efficiency and power at a given boost number, resulting in lower EGTs under heavy load. Overall peak power is also improved, where the LB7 Stealth 64 would normally support 600-610 HP, the LB7 Stealth 64G2 now pushes the envelope to 640HP. You’re not going to find all of these features anywhere else in the aftermarket in a truly stock appearing, bolt-in IHI turbocharger.

    LB7 Stealth 64G2 technology takes our LB7 Stealth 64 and improves every element of it – including the sound.  The LB7 Stealth 64G2 is designed to take the stock long block LB7 as far as possible with stock connecting rods – that’s up to 640 rear wheel horsepower.

    To set a strong forward trajectory on our turbo program we’ve aggressively brought as much of the development and build processes in house.  Our machinists and builders are enthusiasts who are empowered to look for and actively pursue improvements in design, to hone the product quality at every point in the process.

    On the LB7 Stealth 64G2, that means improved tolerances and attention to compressor wheel design. It means sectioning several exhaust housings to ensure consistency in exhaust housing scroll and exducer profile improvements. Every charger is inspected and QC’d before it ships and backed by our Duramaxtuner warranty.

    The LB7 Stealth 64 has been on the market since 2013. The LB7 Stealth 64G2 represents everything we’ve learned – coupled with our in-house manufacturing and quality control – to bring the Stealth 64 to the next level.

    DT550 Built Transmission

    The DT550 built transmission is designed for 2001-2016 Duramax owners that use their trucks regularly.  Great for those that tow heavy or just want a more reliable Allison 100 transmission. Our relentless testing of this pre-built Allison transmission means you don't have to worry about getting where you are going.  

    Our rigid standards for excellence are not limited to just overall strength, this setup is meant for the daily drivers.  No harsh shifting or banging of gears.  Just smooth, positive shifts and an easy converter lock-up.

    The DT550 Built Transmission includes:

    • C1 - C4 Raybestos GPZ Clutches 
    • C5 Reybestos Clutches 
    • Goerend Single Disc, Billet Torque Converter
    • New Neutral Safety Switch
    • New Speed Sensors
    • All new electronics
    • Upgraded valve body
    • Pre-Built and ready to install

    Optional Upgrades:

    • C-3 Oiler
    • Deep Pan

    6 Speed Conversion Kit

    Improve your LB7 or LLY's reliability by utilizing our in-house designed and tested kit coupled with our established transmission tuning. We calibrate firmness and timing of shifts, so you’ll be guaranteed to feel the smoothness and better shift quality missing on the 5 speed Allison. If you’re like the rest of us here at Duramaxtuner using our trucks as daily drivers, the added gear helps take the wear and tear off your engine while cruising at high speeds. It keeps your RPMs at the most efficient curve of the rev range, giving it the best ride possible!

    In addition to helping keep your truck on the road longer, something you will notice is the added bump in fuel economy. This is especially true for those of us logging long commutes via highway. Fewer RPMs, the better your fuel economy. Picking up just a little bit goes a long way while putting on the commuting miles. You’ll also notice how much quieter your ride will be when adding our kit to your truck. NVH(Noise, vibration, and harshness) will decrease drastically, giving you a much more enjoyable ride.




    Edge Insight CTS2 Monitor


    The Only Gauge Display You'll Ever Need! As far as gauges go, this unit is the most compact and comprehensive piece we've found. It allows users to set up a personalized gauge screen based on the feedback they want to see.


    The user can have as many as 8 gauges (or as few as 3) displaying real-time data from the OBD2 port at once.

    S&B Intake


    Flows almost 50% better than your stock system 
    A must-have for anyone looking to increase horsepower, and improve the curb appeal of your truck.



    LB7 Intake Air Horn


    01 - '04 LB7 Only This part improves airflow to the turbocharger compressor wheel. Our 530 rwhp LB7 truck made a few 545 rwhp dynos pulls after adding just this part. Noticeable increase in turbo sound. Air horn, install hardware, and instructions included. Install time 1.5hrs (tight squeeze).

    *01 - '04 Federal Emissions LB7 Only

    Fass 165 Lift Pump


    From the factory, the Duramax trucks are not equipped with a pump to push diesel fuel from the tank to the engine.  This pump ensures there's always a strong supply of clean diesel fuel to your high-pressure fuel system.  Includes a filter and water separator for additional fuel system protection.  This pump is mandatory on our higher horsepower applications where fuel starvation can cause a lack of power, poor shifting, and excessive smoke from low fuel rail pressure. 


    Designed for light-duty trucks while utilizing all the best features of the HD series. Built into a smaller compact version, the Titanium Series offers flow rates up to 260gph. This size difference allows you to tuck the pump closer to the frame for better clearance and less visibility without sacrificing any of the features known to FASS systems. The same motor used on the HD Series (class 8 applications) is also used on our Titanium Series, proving once again that quality is #1 at FASS. *Made in the USA *Lifetime Warranty Available*

    Traction Bars


    Nearly every Duramax has a wheel hop issue right off of the factory floor. Even under stock power levels, this wheel hopping can cause extremely costly repairs, including broken driveshafts, broken axle pinion yokes, premature u-joint failure, and the wearing of suspension components. On top of these issues anytime the wheel hops, it is not touching the pavement. If it is not touching the pavement, you’re not getting traction!


    Traction bars solve this problem.  We offer the Long Horn Fab Shop bolt-on kit and WC Fab weld-on kit.  

    Tie Rod Sleeves

    A must-have for any aggressive 4x4 driving situation. Upgrade your embarrassingly small tie rod sleeves with our upgraded tie rod sleeves. Stock tie rods have a tendency to bend and break if placed under heavy load. If you have any intention of drag racing, sled pulling, or testing the limits of your truck beyond the stock setting, then you need this product.


    We don't just provide custom tuning and manufacture turbos, we also offer a full-service diesel performance shop.  Customers from all over the country have chosen to trust us building their dream trucks.  We take that very seriously.  Meeting deadlines with the job done correctly seem like a simple request, but if you have had performance work done on a diesel truck in the past you know that is not always the case.  

    Our Technicians are diesel performance enthusiasts and based on their formal training and personal experience, know what it takes to do the job right, the first time! 

    We estimate 23 hours of labor for the complete installation of the LB7 Stealth Series Bundle: Stage 2.  For a more precise estimate about your truck please contact our staff: 815-568-7920.

    Prop 65WARNING: Cancer & Reproductive Harm -

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