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Stealth Module - Chevy/GMC Duramax L5P 6.6L (2017-2018) - Stealth Performance Products
Stealth Module - Chevy/GMC Duramax L5P 6.6L (2017-2018) - Stealth Performance Products

Stealth Module - Chevy/GMC Duramax L5P 6.6L (2017-2018)
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Regular price $700.00 $600.00 Sale


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Make your diesel have more efficient power and fun to drive with our Chevy/GMC Duramax L5P 6.6L Diesel Performance Module exclusively for Chevy/GMC Duramax L5P 6.6L years 2017-2018. 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: 2017, 2018 L5P
  • Chevrolet/GMC diesel models: 2500, 3500

The Chevy/GMC Duramax L5P 6.6L Diesel Performance Module provides: 

  • Better throttle response
  • Decreases turbo lag
  • An increase in low to midrange power where you need it
  • Unleash—Increased 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
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.

 

 

Installation:

Part Numbers:
SM3001P (Selectable)

      • Shipping & Warranty

      Shipping

      Standard shipping takes 5 - 7 business days.

      Expedited shipping takes 1 business day.

      Note: Any orders made after 12:00pm EST may be processed the next day.

       

      Warranty

      You can read full details regarding returns, refunds, and warranty information here.

      Customer Reviews

      5.0 Based on 61 Reviews
      5 ★
      95% 
      58
      4 ★
      5% 
      3
      3 ★
      0% 
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      2 ★
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      Thank you for submitting a review!

      Your input is very much appreciated. Share it with your friends so they can enjoy it too!

      Filter Reviews:
      • Turbo lag
      • mileage
      • pedal
      • Duramax
      • removal
      • service
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      • fuel mileage
      • throttle response
      • device
      Frank Mirr verified customer review of Stealth Module - Chevy/GMC Duramax L5P 6.6L (2017-2018)
      10/18/2019

      2017 GMC Denali 3500

      So far the device is working great! I can feel the quicker throttle response, and the truck is a blast to drive.

      FM
      Frank M.
      United States United States
      10/18/2019
      Stealth Performance Products

      Hey Frank, thanks for the wonderful review! We have just shared it on the Facebook page and website!

      Kody M. verified customer review of Stealth Module - Chevy/GMC Duramax L5P 6.6L (2017-2018)
      10/10/2019

      2018 Chevrolet duramax

      Works great improved throttle response a lot and added 2 mpg

      KM
      Kody M.
      United States United States
      Stan V. verified customer review of Stealth Module - Chevy/GMC Duramax L5P 6.6L (2017-2018)Stan V. verified customer review of Stealth Module - Chevy/GMC Duramax L5P 6.6L (2017-2018)
      09/23/2019

      2018 GMC 3500 Dually

      I'm happy with the Stealth Module. I notice better throttle response and better fuel mileage

      SV
      Stan V.
      United States United States
      03/24/2019

      GTG!

      For 2017 GMC Duramax...Easy install. Easy removal for service. Conservatively 3-4 mpg better (not currently towing). Way less turbo lag. Very satisfied!!!

      JB
      Jason B.
      02/23/2019

      Definitely helped turbo lag on my 2019 Chevy 3500

      A Stealth Performance Products Customer
      CP
      Chris P.
      Brady Dahl verified customer review of Stealth Module - Chevy/GMC Duramax L5P 6.6L (2017-2018)
      02/21/2019

      Simple install

      Great experience, simple install and easy to read instructions. Highly recommend this product,one buddy has already ordered his. Big notice in power and driving 75 to 80 mph down interstate with empty truck 16.2 average fuel mileage. Very satisfied customer. Thanks again

      BD
      Brady D.
      02/03/2019

      I have an 18 Duramax and have had several issues with the truck going into limp mode. Not sure if it is a module issue or if the truck has issues but the customer service is amazing. While having technical issues calling the 888 number the owner took his personal time at midnight to call me and assist me in trying to fix an issue that very well may have nothing to do with the module and is continuing to help me get my truck running like it should! Best customer service I have seen in a long time!

      A Stealth Performance Products Customer
      MD
      Matt D.
      01/17/2019

      Great things come to Pass.

      Took 30 minutes to install, just cant believe the additional power and the increase in fuel mileage, Pre-ordered back in November 2017, glad I waited for it. Their Customer service is the best, always got updates on the progress of the Module upto and including the day it shipped. I recommended it to my Nephew , he just bought a 2018 D-Max. last week

      M
      Mike
      Mike Johnston verified customer review of Stealth Module - Chevy/GMC Duramax L5P 6.6L (2017-2018)
      01/13/2019
      MJ
      Mike J.
      Jimmy Howard verified customer review of Stealth Module - Chevy/GMC Duramax L5P 6.6L (2017-2018)
      01/10/2019

      First time in cold and snow, ran like a beast!

      Eric Madrid is a very good dude, helped me through some quirks, always polite! And he answers his phone or gets back with a text.

      JH
      Jimmy H.
      Michael Klonica verified customer review of Stealth Module - Chevy/GMC Duramax L5P 6.6L (2017-2018)
      01/10/2019

      2018 Silverado 3500 CCLB, 4.5" BDS Lift, 295/65R20 Nitto Trail Grapplers

      Love the turner!!! Bought after reading reviews and waiting for full delete to get through beta testing. Put on 6100 miles since I bought it and seen an average of 2.9 MPG increase! Running 78 mph I can avg 17.8 and around 14.7 mpg when running 85-90 mph. Would Highly recommend for anyone looking to wake up the L5P and get rid of the dead pedal.

      MK
      Michael K.
      JON REDMOND verified customer review of Stealth Module - Chevy/GMC Duramax L5P 6.6L (2017-2018)JON REDMOND verified customer review of Stealth Module - Chevy/GMC Duramax L5P 6.6L (2017-2018)
      01/09/2019

      Shocking sigh of relief (long, semi detailed review)

      As you will hear from multiple reviews, we are all skeptical, took me 4 months to finally risk the money on this module. I immediately rushed out to install it when the ups man dropped it off. Since then, I have noticed that my MPG has risen, dead pedal is all but non-existent, and turbo lag has significantly diminished. Day to day driving is up about 34 mpg and Trailering has come up about 2-3mpg which shocked me the most. Also, love the length of the switch cable. Gives you options on where to mount other than just your common, under the steering wheel location. I mounted mine in the upper glove box, out of the way of accidental bumps from the legs. looking at levels(S,1,2,3) I have not tried the level 3 setting as I am not one to push my trucks limits until needed, I love it set on level 2 from day of install and reduce to level 1 when wife wants to drive haha. SUMMARY= Great Investment if you're not modding your truck but, just wanting cleaner response and drivability. I will definitely send my friends and family to order their stealth modules or I might give one away as a birthday gift. I will add a review after lifting my truck to see how it sits from there with more load

      JR
      JON R.
      Brandon Monebrake verified customer review of Stealth Module - Chevy/GMC Duramax L5P 6.6L (2017-2018)
      12/19/2018

      Fuel mileage was a instant increase by 2mpg around town and the power difference is unbelievable. Cant wait to hook it to the trailer this spring to go pulling

      BM
      Brandon M.
      Robert Etherton verified customer review of Stealth Module - Chevy/GMC Duramax L5P 6.6L (2017-2018)
      11/29/2018

      Great power increase and a 3 MPG increase In My 2018 Duramax.

      The midrange HP increase is very noticeable and the 3 MPG fuel savings is an added bonus.

      RE
      Robert E.
      Keegan Tucker verified customer review of Stealth Module - Chevy/GMC Duramax L5P 6.6L (2017-2018)
      11/19/2018

      2017 High Country Duramax equipped with a Stealth Module

      Stealth Module in my 2017 Duramax has improved performance and fuel mileage.

      KT
      Keegan T.
      10/19/2018

      Just installed this on my 2018 duramax yesterday. I can tell you so far this product delivers as advertised. Looking forward to see what kind of mpg gains i get out of it as well. Nice add on for trucks still under warranty to get the most out of them. I definitely reccomend.

      A Stealth Performance Products Customer
      MW
      Matt W.
      BRIAN VANELLA verified customer review of Stealth Module - Chevy/GMC Duramax L5P 6.6L (2017-2018)
      10/07/2018

      2018 Chevy Duramax Diesel

      Once I installed the Stealth Module and took the truck for a test drive I was blown away with the response! I highly recommend Stealth! I keep it on the 60hp setting but did do some hotrodding with the 90hp setting. I've seen a little bit better fuel economy overall but it does depend on my driving habits.

      BV
      BRIAN V.
      Paul Silva verified customer review of Stealth Module - Chevy/GMC Duramax L5P 6.6L (2017-2018)
      10/02/2018

      2019 Silverado 2500 HD Duramax

      Ordering experience was great! Highly recommend. Easy Installation and immediate gains. Not so much of dead petal anymore and seen improvements on mpg's. Towed my trailer like a champ and can feel the torque. This by far is the funnest truck I have ever had. Thank you Stealth Performance! Hopefully you come out with more products for L5P's!!!

      PS
      Paul S.
      Michael Gallagher verified customer review of Stealth Module - Chevy/GMC Duramax L5P 6.6L (2017-2018)Michael Gallagher verified customer review of Stealth Module - Chevy/GMC Duramax L5P 6.6L (2017-2018)
      10/02/2018

      2018 Denali. Weld wheels , Stealth Performance !!! BADASS !!!

      Stealth Performance is badass. I towed my 5th wheel 41 almost 3000 miles and it towed flawlessly. Better gas mileage. Better pulling power. Better out of the hole feeling. Very happy with my purchase

      MG
      Michael G.
      Aaron Daugherty verified customer review of Stealth Module - Chevy/GMC Duramax L5P 6.6L (2017-2018)
      10/02/2018

      The Stealth module made a huge difference in daily driving and when towing it s even better. The daily fuel economy increased by 1.5-2 mpg depending on the amount of stop and go.

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      Aaron D.
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