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Is tuning really necessary?

alexccs

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Hello there…. Brand new to the Jeep world.
Just purchased a 2021 JL Rubicon, installed 37s x 13.50 R20 with a 3.5 in lift kit
Is tunning your Jeep necessary? If so, is that something I can do myself, or should I take it to a dealership / shop?
TIA
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DaltonGang

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Hello there…. Brand new to the Jeep world.
Just purchased a 2021 JL Rubicon, installed 37s x 13.50 R20 with a 3.5 in lift kit
Is tunning your Jeep necessary? If so, is that something I can do myself, or should I take it to a dealership / shop?
TIA
Tuning, not "Tunning".
But, I know what you mean, and the answer is "No". Enjoy your Jeep stock. Unless you are a computer expert, and know how to reprogram an ECM, you cannot do it yourself.
 

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Hello there…. Brand new to the Jeep world.
Just purchased a 2021 JL Rubicon, installed 37s x 13.50 R20 with a 3.5 in lift kit
Is tunning your Jeep necessary? If so, is that something I can do myself, or should I take it to a dealership / shop?
TIA
I’m going to assume by tuning you mean calibration. Z Automotive sells a device called a Tazer JL Mini, it allows you to recalibrate for your larger tires. Your speedometer will read correct and it will give you access to many other features.
 

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alexccs

alexccs

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I’m going to assume by tuning you mean calibration. Z Automotive sells a device called a Tazer JL Mini, it allows you to recalibrate for your larger tires. Your speedometer will read correct and it will give you access to many other features.
Thanks bro
 
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alexccs

alexccs

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You may also wanna check the Superchips Flashpaq, it offers a few tuning possibilities.
Thanks…. Is that something that’s self explanatory to do?
 

aldo98229

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For 37s, yes, you are going to want to recalibrate your speedometer, which in turn recalibrates your automatic transmission’s shift points.

I got the Tazer Mini. It allowed me to disable ESS, recalibrate my speedometer, lower the threshold on the TPMS, activate the halos on the LEDs, and disable those annoying weather alerts. It allows dozens of other functions.

Regular price is $330; someone just found a coupon for $270 or so.

Good luck!
 

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Thanks…. Is that something that’s self explanatory to do?
I owned a flashcal and not flashpaq on my JK and now use the Jscan on my JL, but Superchips is a company that I recommend. their product are very user friendly. I recommend you check it out and watch reviews and videos to learna lot more than I know.
 

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My vote goes toward JSCAN for simple things like tire size and a few other things but if your say just wanting to turn off ESS Tazer or Smart Stop/Start is the ticket.

Before doing anything check your speedo with an app like Speedbox or other GPS method to see how far its off, if only off a few MPH i would not bother.
 

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What type of engine do you have? The 2.0T or diesel may benefit more from a tune than a naturally aspirated 3.6L.

Its been awhile since i looked into the data, but as I recall, I don't think you can get much of a gain on a NA 3.6L. If that's what you have, save your money for other mods, or possibly a supercharger.
 
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alexccs

alexccs

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For 37s, yes, you are going to want to recalibrate your speedometer, which in turn recalibrates your automatic transmission’s shift points.

I got the Tazer Mini. It allowed me to disable ESS, recalibrate my speedometer, lower the threshold on the TPMS, activate the halos on the LEDs, and disable those annoying weather alerts. It allows dozens of other functions.

Regular price is $330; someone just found a coupon for $270 or so.

Good luck!
Thanks man….. I’ll definitely look into it
 
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alexccs

alexccs

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What type of engine do you have? The 2.0T or diesel may benefit more from a tune than a naturally aspirated 3.6L.

Its been awhile since i looked into the data, but as I recall, I don't think you can get much of a gain on a NA 3.6L. If that's what you have, save your money for other mods, or possibly a supercharger.
I do have a 3.6L
 
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alexccs

alexccs

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For 37s, yes, you are going to want to recalibrate your speedometer, which in turn recalibrates your automatic transmission’s shift points.

I got the Tazer Mini. It allowed me to disable ESS, recalibrate my speedometer, lower the threshold on the TPMS, activate the halos on the LEDs, and disable those annoying weather alerts. It allows dozens of other functions.

Regular price is $330; someone just found a coupon for $270 or so.

Good luck!
Bro, I’ve been looking at the Tazer Mini videos, and it looks pretty self explanatory…. Plus, the reviews I’ve been reading online are really good. Probably a stupid question, but how can I find the threshold for the TPMS? I got 37s…….

And lastly, where did you find the coupon for the $270.00?
Thanks!!!!!!
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