Web Analytics

Free Standard US Shipping
Stealth Module - Chevy/GMC Duramax LLY/LBZ 6.6L (2004-2007) *IN DEVELOPMENT*

Stealth Module - Chevy/GMC Duramax LLY/LBZ 6.6L (2004-2007) *IN DEVELOPMENT*
Free Gift

Write a Review

$600.00 Sale & FREE Shipping (US)


Financing options available

Currently In Development: Please subscribe above to be notified when the Chevy/GMC Duramax LLY/LBZ 6.6L Stealth Module (2004-2007) is released.

Make your diesel have more efficient power and fun to drive with our Chevy/GMC Duramax LLY/LBZ 6.6L Stealth Module exclusively for Chevy/GMC Duramax LLY/LBZ 6.6L years 2004-2007. Your module will be a stand-alone computer that simply plugs in under the hood of your truck. It will not increase fuel volume, so there’s no need for any other modifications. Make your truck work smarter, not harder! Get that extra boost in performance without any harmful side effects.

Works with:

  • Chevrolet/GMC years: 2004, 2005, 2006, 2007
  • Chevrolet/GMC diesel models: 2500, 3500

The Chevy/GMC Duramax LLY/LBZ 6.6L Stealth Module provides: 

  • Better throttle response
  • Decreases turbo lag
  • An increase in low to midrange power where you need it
  • Unleash—up to 100 hp, 120 ft-lbs of torque*
  • Reliable torque increase
  • Safe for towing and everyday driving
  • Stays within stock safety parameters
  • Stealthy technology does not leave a footprint in the ECM
  • Potential fuel economy gains. Most customers see a 10-20% increase with proper driving habits. 
  • Smooth and predictable power across the entire RPM prevents the transmission from struggling to find power and hold gears
  • Includes all weather factory style OEM plug and play connectors for quick and easy installation

How it Works:

The module is a stand-alone computer that plugs in under the hood. The internal software meticulously works to optimize the injection pressure to amplify combustion efficiency.

By bringing the fuel rail pressure to its desired pressure sooner, it allows for finer fuel atomization. In turn, elevating fuel-air mixture. This allows for better combustion quality, efficiency, and power output. The end result is more torque where you need it, less turbo lag across the whole RPM spectrum, and increased throttle response. Keep in mind, your truck’s stock safety parameters remain in place. The module is a safe solution for every day driving and hauling.

Selectable Module:

  • The selectable module includes a switch with 4 modes:
    Stock, Low, Medium, and High
    (Approximately Stock, 30hp, 60hp, 90hp)
Why sacrifice peace of mind when looking for a little bump in performance? No endless modifications or flashes to your trucks computer. This is the easiest and safest way to give your truck improved performance. A cost-effective approach to wake your truck up starts here. Backed by a limited lifetime warranty, includes 24/7 technical support, and superior customer service. Finally a high-quality, safe, and non-invasive performance solution your truck has been waiting for. See why thousands of diesel pickup owners are turning to Stealth.

Mileage is impossible to guarantee with any modifications. Anyone that claims otherwise you should be very leery of. The majority of Stealth Equipped vehicles do see a mileage increase due to using the efficient low-end power our module provides to keep their RPMs down and hold higher gears. With responsible driving habits it's not uncommon to see a nice bump in MPG along with an all-around better driving experience. You're welcome to reach out to us so we can provide you with any tips we have learned from first-hand experience and speaking to tens of thousands of diesel owners.

Part Numbers:
SM3004P
Back to Duramax Modules