Quadzilla Stealth 2 Tuner #S2TUNER-LBZ

List Price: $615.00
XDP Price: Discontinued

Product Options

Vizion Wireless Monitor:

06-07 GM 6.6L Duramax (LLY/LBZ)
     Effective 1/23/2013, Quadzilla Performance Technologies has gone out of business. All units will be sold without manufacturer support and or warranty. Units purchased through XDP will be covered by our 30 day satisfaction guarantee. XDP will no longer offer extended warranties on Quadzilla Performance Products.

  • Fastest downloader on the market
  • Add up to 135 horse power and 300 ft. lbs of Torque to the rear wheels.
  • Will allow you to remove top speed limiter.
  • Increase fuel mileage by 2-4 MPG.
  • Can read and erase Codes.
  • Allows for transmission reset.
  • Recalibrates for different size tires or gear ratios.
  • Real time data read out.
  • USB updatable

At the heart of the Stealth Tuner is many long hours of precision tuning combined with thousands of miles of real world testing. We combine the use of fuel injection pulse width and injection timing to create the ultimate horsepower and torque curves. The precision tuned timing maps are one of the reasons our tuner has the lowest exhaust temperatures on the market. Perhaps the best part of the Stealth Tuner is the mileage gain that you will see. We all know that a more efficient engine will gain fuel economy and we know exactly where the stock parameters are lacking. Depending on your driving style, you can expect to see a 1-4 mpg increase!

 The Quadzilla Stealth Tuner is packed full of power and features for your 2006-2007 Duramax. Among these features are power increases up to 135hp and 300ft lbs of torque. Also included in this awesome tuner are the ability to modify your speedometer to compensate for larger tires*, remove your top speed limiter*, retrain your transmission, and read and erase engine and transmission fault codes. All tuners also have the ability to use these user-defined categories without installing an engine tune.

 Combine all of this with the best reliability, and you can't go wrong. We offer a 1 yr warranty in the tuner and a LIFETIME warranty on the software! No one else will match this. Quadzilla also offers free updates and revision to the original owner FOREVER.

Vizion Wireless Monitoring System

With the addition of the Vizion Wireless Monitoring System you can monitor 25+ parameters with a couple of simple finger swipes on your Android or Apple device.

The Vizion combines the state of the art wireless communications of our iQuad interface with the power of our successful Scout II Monitoring System! And just like the iQuad, the new Vizion works on iPhones and Droid devices with free downloadable apps.

So how does it work? We developed a specialized wireless module that gives you the needed link between your vehicle's OBD2 port and your iPhone or Droid device. Then you simply download our FREE Vizion app and you are ready to go!

Complete Gauge and Diagnostics Capability

  • Monitor up to 50+ parameters
  • User Defined Warnings
  • Read and Erase DTC's
  • Complete Regeneration Monitoring
  • 0-60 Performance Tests
  • 1/4 Mile Performance Tests
  • User defined Gauge set
  • Calculate Corrected Speed for oversized tires
  • Simple Installation

Additional Information

Install Sheet

Customer Reviews - Include your order number for a chance to win a $100 GiftCard

(16 Ratings, 10 Reviews) Average Rating:
mike (Maryland) 4/16/2012 9:22 AM
Well on my 2nd stealth 2 and still wont tune my 06,lly. don't no whats going on nor dose Quadzilla. so far not happy.
best ever
kyle (ct) 7/6/2011 11:47 PM
Best money i ever bought, first day i got it installed the 135hp setting and i cant keep my foot off the gas, gotta love that black smoke stopping traffic
Wow !!!
Matt (Palmquist) 6/21/2011 10:49 PM
Programming was simple. I started off with the 50 HP increase and my tires are spinning ! Feels like a new truck for sure ! Gonna step it up to 73 HP tomorrow. You can't go wrong with this one ! Have a 06 GMC 2500 HD turbo Diesel .
Excellent programmer
John (Mesa) 11/8/2009 9:55 AM
Installed on 06 LBZ CC SWB 4X4. On 135hp setting, power is ridiculous, truck is sportscar fast. On eco settng getting about 22-23 mpg on highway and 17-19 in city. Display is very customizable from readout to background color. I would recommend to anyone with diesel along with an intake and exhaust system.
Great Product
Ron (Abingdon, Va.) 10/2/2009 10:52 AM
I have had this product for a couple of weeks now and can't believe the power difference. I always thought my LBZ had plenty of power before but now it is crazy fast! I haven't had it on economy mode enough to find out how much of a mpg gain I will get(always seem to have it set on the 135hp setting). I would recommend the Stealth 2 to anyone, it is easy to use, just follow the instructions on the screen and you are done in just a couple of minutes. Plus you gotta love that black smoke!

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