Select your vehicle

Stage 2 Performance Chip Module OBD2 For GMC

(4 reviews) Write a Review
  • Stage 2 Performance Chip Module OBD2 For GMC
  • Stage 2 Performance Chip Module OBD2 For GMC
  • Stage 2 Performance Chip Module OBD2 For GMC
  • Stage 2 Performance Chip Module OBD2 For GMC
  • Stage 2 Performance Chip Module OBD2 For GMC
  • Stage 2 Performance Chip Module OBD2 For GMC
  • Stage 2 Performance Chip Module OBD2 For GMC
  • Stage 2 Performance Chip Module OBD2 For GMC
  • Stage 2 Performance Chip Module OBD2 For GMC
  • Stage 2 Performance Chip Module OBD2 For GMC
$199.99 $149.99
- You save $50.00


Stage 2 SMARTTUNE LCD Performance Chip Module  OBD2

  • Custom engineered for your specific vehicle.
  • The fastest and easiest route for turning that potential into raw horsepower and torque is by tapping into your vehicle's computer.
  • Air/ Fuel ratios.
  • LCD Display.
  • Tweak your engine's settings to perfection
  • Plugs easily into your OBDII diagnostic port inside - no messing around under the hood required.
  • Installs in minutes and takes less than 30 seconds to begin tuning.
  • Improvements in engine efficiency and gas mileage.

Your engine from the factory is not tuned for maximum power. With the help of SMARTTUNE you can unleash that little extra potential your engine is missing. SMARTTUNE is the fastest and easiest route for tuning your engine for raw horsepower and torque. Completely plug and play with LCD and LED display. SMARTTUNE installs in minutes and the initial phase takes less than 30 seconds to start the tuning process. Designed for high octane fuels.

Results do vary, but you can expect

Faster Acceleration / 0-60 Times
Up to 2 mpg increase  (Results do vary and are not guaranteed!)
Up to 40+ Horsepower increase (Results do vary and are not guaranteed!)
50% Better throttle response
Easy to install
Up to 33% added torque  (Results do vary and are not guaranteed!)
Reduced emissions with 91+ Gas
Better 1/4 mile times
Prolongs engine life
Made in the USA
Smoother idle
Saves you money!
Better towing power & improved passing ability

Thanks to the Magnuson Moss Warranty Act: US Code – Title 15, Chapter 50, Sections 2301-2312, your vehicle’s factory warranty is protected by law when you add aftermarket parts.

2.7 L (167 cu in) EER V6
3.5 L (215 cu in) EGJ V6
5.7 L (345 cu in) EZB HEMI V8
6.1 L (370 cu in) ESF HEMI V8


Takes just minutes to complete!

Unmatched 100% Money Back Satisfaction guarantee. If you are not happy with your purchase, send it back for a full refund! What do you have to lose!? Pays for itself in no time!


Frequently Asked Questions

Do I need any special tools or automotive knowledge to install?

No! Unlike other products on ebay which require you to cut into your sensors in the vehicle; this product is truely 100% plug n play. It only works for vehicles 1996+ and is tuned for your model. Many sellers on ebay sell modules requiring cutting into sensors that can damage your engine! They don't tell you this until you get the product. Watch out for those cheap $10-50 mega horsepower products. They are all gimicks and basically a plastic box with empty space. 

Does this product work with automatic and manual?


Dose this product work with 2WD or 4WD

Works on both types if your car has options 

Will this product void my warranty?

No! it will not void your warranty, many dealers frown on any performance upgrades. However, under the law, the manufacturer cannot void your warranty for adding aftermarket parts. The unit removes as easily as it installs. So it can be removed before taking the vehicle to the dealer for service. This is the easist way to avoid any dealer concerns. 

How much horsepower will I gain?

Results do vary and can sometimes take up to 2 weeks to see results due to computer learning. Stage 1 recalibrates the ignition and fuel based on the variables such as the fuel octane, ambient air temp and other sensors in addition to driving style. 

Can this harm my engine or vehicle electronics?

No, not at all. Zero % chance of any harm. Our products have been dyno tested and proven to work without any bad effects on the vehicle. We guarantee this! 

How does this product work?

Using your OBD on board computer port - plugs right in - our product modifies signals sent to your vehicles ECU computer. The module optimizes functions such as ignition timing, air fuel mixture, fuel maps and produces more power and better gas mileage. The ECU of modern vehicles controls a series of actuators on an internal combustion engine to ensure the optimum running. It does this by reading values from a multitude of sensors within the engine bay, interpreting the data using multidimensional performance maps (Look-up tables), and adjusting the engine actuators accordingly.

View AllClose

4 Reviews

  • 5
    SmartTune Stage 2 Performance chip

    Posted by Mark on Oct 14th 2019

    Really impressed with the Stage2 chip. I had the stage one chip prior to installing the stage 2 and can really feel the difference. I have only driven it for 2 weeks and if it stays the way it is performing. I will be satisfied. Thanks.

  • 5
    Stage 2 Chip!!

    Posted by Marshall Milligan on Apr 22nd 2019

    Can Already feel difference in Mid Range and Top End RPM? Significant Boost to Freeway On Ramp Acceleration! Very Excited to get update after initial Usage and First Tank of Fuel?

  • 4
    Seems to improve throttle resoonse

    Posted by paul hassfield on Jul 27th 2018


  • 4
    Its getting better each time I drive

    Posted by James D Adamson on Jun 28th 2018

    Good product it changed the shift pattern and throttle response

View AllClose