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$391.95

inTune i3 for Jeep - 8400

Suggested retail: $435.95
Your Price: $391.95
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    In Stock. Orders placed by 2 PM MT, with the exception of weekends and holidays, will ship the same business day. Please allow 48-72 hrs for 2015+ Chrysler PKIT and PCM products. Want to Buy Now and Pay Later? Click Add To Cart and see how you can spread your payment over 3, 6, or 12 months with Affirm

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    Orders placed by 2 PM MT, with the exception of weekends and holidays, will ship the same business day


    If you are a horsepower junky and you need a fix, look no further. Whether you have a Chrysler, Ford, or GM vehicle in your driveway, DiabloSport's inTune i3 Performance Programmer is an easy way to boost power without even popping the hood! You get a performance upgrade that makes your throttle more responsive, optimizes drivability, and even adds some bottom-end horsepower! The inTune i3 programmer is pre-loaded with dyno-tested performance programs designed specifically for your car or truck. Within minutes, you could add horsepower and torque with no other tools required!


    Note: This product is 50-state emissions compliant. This product does not include CMR custom tuning capabilities. Please see PN 8445-1 for CMR compatible tuning.


    Not available for sale or use on pollution controlled vehicles in the state of California.

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    Questions about buying this product? Our experts are available from 8 AM – 5 PM MT. Call today at 866.404.6141. Our sales team would be happy to answer any questions you have.
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    This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO) number
    The following vehicles are considered Emissions Controlled Vehicles:

    • 1966 and newer U.S. manufactured California Certified vehicles
    • 1968 and newer U.S. manufactured Federally Certified vehicles
    • 1968 and newer Foreign manufactured vehicle

    inTune i3 for Jeep is rated 3.5 out of 5 by 2.
    Rated 2 out of 5 by from Idle Increase Bug - 6-Speed JK Quick heads up for anyone purchasing this unit with intent to increase their idle on a 6-speed JK...it will not work. The increased idle feature does not hold the selected setting and continuously returns to factory when coming to a stop (street and trail). After going through several custom tune files, we were unable to fix the bug. Unit returned.
    Date published: 2019-01-03
    Rated 5 out of 5 by from Great extra features Excellent product. Easy to use. Great tech support. Lots of expandable and extra features. Daily updates. I can also make fine adjustments on things like shift points, fan settings etc. Also purchased an extra licence to tune my other vehicle with the same tool.
    Date published: 2019-01-10
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    Will this work on a 2019 Grand Cherokee Limited X 5.7?

    Asked by: Parker15
    Negative, tuning for the 2019 Grand Cherokee is in the works stay tuned!
    Answered by: Moises
    Date published: 2019-10-09

    What customizable option are available when using this on a 2007 jeep commander with 5.7

    Asked by: jmt0645
    These are the features you'd have access to on that vehicle. 91 Octane Performance Tune: 23HP 23TQ 87 Octane Performance Tune: 15HP 15TQ Mileage Booster Tune 2mpg Touch Screen - Y Data Logging - Y Check Clear DTCs - Y 5 Volt Data Logging Inputs - Y Calibrate Speedometer for Gear Ratio - Y Calibrate Speedo for Tire Size - Y Cooling Fan Control - Y Disable ESP - Y Throttle Booster - Y Fuel Rich/Lean Adjustment - Y Spark Timing Advance/Ret - Y Idle RPM - Y Top Speed Limiter - Y Rev Limiter - Y Shift Points - Y Shift Firmness - Y Torque Management Adjustment - Y Disable Active Fuel Management - Y EO Number - D-770
    Answered by: Marketing MB
    Date published: 2020-04-13

    I have a 2011 wrangler jk with a 3.8ltr what benefits can I expect with the tuner? Can it check and clear engine codes and turn off tps?

    Asked by: Lanceaf9
    I have included the features and benefits that the 8400 offers for your vehicle. 91 Octane Performance Tune: 13HP 18TQ 87 Octane Performance Tune: 10HP 15TQ Off-Road Crawl Tune 10HP 18TQ Touch Screen - Y Data Logging - Y Check Clear DTCs - Y 5 Volt Data Logging Inputs - Y Calibrate Speedometer for Gear Ratio - Y Calibrate Speedo for Tire Size - Y Throttle Booster - Y Fuel Rich/Lean Adjustment - Y Spark Timing Advance/Ret - Y Idle RPM - Y Top Speed Limiter - Y Rev Limiter - Y Shift Points - Y TPMS Adjustment - Y Lock Differentials in All Modes - Y EO Number - D-770
    Answered by: Marketing MB
    Date published: 2019-03-21

    i have a 2012 v6 2wd grand cherokee. i am considering changing the rear differential from a 3.09 to a 3.06 . will this unit allow you to change the gear ratio in the computer from a 3.09 to a 3.06? thanks

    Asked by: backlash43
    Regrettably, we don't offer a tuner for a 2012 Grand Cherokee with the 3.6 L V6
    Answered by: Moises
    Date published: 2019-07-03

    I have 2006 grand cherokee Laredo 4.7l will this work? Some site say yes other say no

    Asked by: B rad
    That product does not support that vehicle. However, our Predator 2 kits do support that application. Part numbers 7401 or 7410. The only difference between the two is that the 7401 is a 50 state emissions compliant product with no custom tuning potential. The 7410, is not 50 state emissions compliant and it features the ability to add custom tunes to it down the road.
    Answered by: Marketing MB
    Date published: 2019-01-04

    I have an 08 SRT and my brother had an 08 Wrangler. Can the i3 tune both if we buy the additional license?

    Asked by: Chops1710
    Yes, you should be good to program both vehicles if you get that license.
    Answered by: Marketing MB
    Date published: 2018-12-21

    Can you use the i3 to turn off ESP in a 2007 Jeep Wrangler?

    Asked by: troutbum
    Below are some of the adjustable parameters we modify. Calibrate Speedo for Tire Size Lock Differentials in All Modes Shift Points Cooling Fan Control Fuel Rich/Lean Adjustment Spark Timing Advance Idle RPM Rev Limiter Speed Limiter Throttle Booster Tire Pressure Threshold Adjustment Torque Management Adjustments
    Answered by: Moises
    Date published: 2018-11-14

    I have a 1998 Jeep Grand Cherokee 5.9 L, any of your programmers cover this Jeep?

    Asked by: Zx1100
    Yes we do! Check out the 7401 Predator 2. https://www.diablosport.com/shop/predator-2-for-jeeps-dodge-suvs.html
    Answered by: Marketing MB
    Date published: 2018-10-02

    I gave a 2011 grandcherokee. 5.7 hemi. Will the allow me to change when my fan runs?

    Asked by: 2011jeep
    Yes, the I3 has cooling fan control for your application.
    Answered by: Mike M
    Date published: 2018-12-11

    Does this work on 2012 jeep compass?

    Asked by: Cal28
    I'm afraid that the Compass is not supported by our devices.
    Answered by: Mike M
    Date published: 2018-07-11

    2013 SRT8 Grand Cherokee- Can this disable the MDS??

    Asked by: kane22611
    Yes, we can disable the MDS on any vehicle we support that has that system from the factory.
    Answered by: Mike M
    Date published: 2019-10-31

    Why my tune i3 for jeep (8400) does not recognize the vin number of my 2005 jeep wrangler TJ does not allow to enter manually ???

    Asked by: Lafontaine
    Thanks for answer.. the fuse is fine,,, I can read de PO codes and apply the 87 oct tune, but can't change the tire size or gear size. I think is because the I3 tune not read the vin number and not accept it manualy. 
    Answered by: Lafontaine
    Date published: 2018-06-28

    Will all of the features listed work with a 2005 Jeep Wrangler Rubicon? Is there any difference between this unit and the one that comes with the Sprintex Supercharger?

    Asked by: Gossamer
    I know the Intune2 did not cover TJ wranglers for changing gear ratios, the Rubicon locker in all ranges, and speedometer adjustments. I was told that those features are only available on the JK Rubicons. Have these features been added to the I3?
    Answered by: Gossamer
    Date published: 2018-06-07

    I have a 2005 grand cherokee 5.7 hemi would yhis work?

    Asked by: MartinP
    Yes, that device contains tuning support for your vehicle.
    Answered by: Mike M
    Date published: 2018-03-14

    Hi, I have a 2006 Jeep Grand Cherokee srt8 and a 2011 grand Cherokee limited 5.7 can I use this module for both vehicles, buying both software. And will it keep the stock values for both. Thanks. 

    Asked by: Valentin
    Yes, once you have the device you can either switch the tool from one vehicle to another by returning the previously tuned vehicle back to stock. If you would like to be able to tune both vehicles at the same time, you can purchase an extra license through our Ignition updater program, or by simply calling in with the device handy to get its serial number. Ignition can be downloaded and installed here https://www.diablosport.com/downloads/
    Answered by: Mike M
    Date published: 2018-02-06

    Hi, I'm from Australia and have a 2011 Jeep 5.7L. I bought the i3 and applied the 91 Octane tune. There is a clear difference. What I want to know is it possible to upgrade from this model (8400) to the Platinum so I can apply custom tunes?

    Asked by: Roddie
    Please email me directly and we can go over your options. mikem@powerteq.com
    Answered by: Mike M
    Date published: 2018-02-01

    Would it work with a Jeep wk2 v6 

    Asked by: Albaromillan562

    Hi, Would this flash tune work on a 2014 Grand Cherokee SRT that runs on 98RON fuel here in Western Australia? Our fuel available at the pumps is 91RON, 95RON and the 98RON. Is it just plug and play ? Its stock apart from a K&N filter.

    Asked by: Gordon C

    Will this fit my 2017 v6 Jeep Grand Cherokee and how many hp would it give it 

    Asked by: Albaromillan562

    I have a 2012 Wrangler JK. Does this have fan control features? 

    Asked by: Josh327

    Will this work for my 2014 grand Cherokee with 3.6l? Trying to change tire size

    Asked by: Evanofd

    Will this take off the speed govener?

    Asked by: Bmackhemi

    I have a 2011 Jeep Grand Cherokee 3.6L What kind of specifications in upgrades am i able to do or what kind of gains is there with the i3 tune , and do I need a clean pcm or a reprogrammed pcm? 

    Asked by: Eduardo

    Does the California compliant model still have the ability to change air/fuel ratios and timing?

    Asked by: 08 Wrangler

    I have a 12 GC SRT and I'm just looking to give it a kick in the butt feeling. Can I purchase this tuner for my 6.4 and then add a Corsa exhaust later and retune it?

    Asked by: Bobby

    Would a 8345 work on a Jeep it calls for the 8400 

    Asked by: Michael92

    does that product disable the mds fonction.

    Asked by: pierre

    Would this work on a Jeep Liberty 2012 3.7L v6?

    Asked by: Rainer

    Does the i3 have any installed fuel Econ tunes for a 2012 grand Cherokee with the 5.7 in it

    Asked by: Adam88

    I selected 2011 Grand Cherokee 3.6 and this product is in the list... Is this product STILL not suitable for a Pentastar WK2. If this is still the case.... why does it come up under my Make model and engine...

    Asked by: WK2Grand
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