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With the better transmission mapping, the engine doesn’t get bogged under low RPM high load and the engine runs more efficiently.

My test mule only had 700 miles on it when I started tuning it, but I was seeing 16-17 mixed driving before tuning with 87. 17-18 mixed with premium. Add 1-2 to both the figures tuned. 21-22 tuned on the highway. But I’m also a bone stock Sport S soooooo doesn’t mean much. Lol

You bet! My customers ditch the throttle controllers though. No need for artificial 5v reference signal changers. We can do all that the proper way through tuning on the pedal tables in the tune directly. We can dial in fueling for the extra air from the intake and the like as well. All part...

If your a GPEC5 unit (most 2022 and up), plan on $1400 ish all in including my fee if your an automatic and don’t have any of the supplies. If your a GPEC2A and you take advantage of the discount on PCM unlocking mentioned in that tuning guide, your more around $1100 all in. What I tell guys is...

The guys at livernois know what they are doing, but Jeep is low on their priority list. And last time I checked, they don’t datalog and review your file to make sure your getting the most out of it for your Jeep. Nothing against them as they make big gains on some platforms, they are just a huge...

Completely safe. That’s why I datalog everything and make sure everything is running the way I want before giving a “final” file. In some ways especially on 87 octane tunes they can be safer than factory because factory spark timing is too aggressive for 87 octane. No current plans to partner...

Yes absolutely

No. This has been discussed in great detail on the JL thread. Dealer can’t tell. WiTech will not see that parameters were tuned on. Only thing it’ll show it flash count but no tech looks for that for anything. Only thing you might not have under 3/36 warranty is the PCM itself. Everything else...

Ethanol actually helps. The alcohol/ethanol content adds a cooling effect to the combustion process and can help reduce knock and LSPI. And these are set up from the factory in the tuning to have the fuel trims sense out E10. Long term fuel trims have to pull fuel a little bit to make E0 run...

I’d like to, but there are so few of them locally in my area. I don’t have much diesel experience outside of a couple Ford powerstrokes. Transmission is the same though. I would need one for a few weeks locally to work on before doing it remotely for people.

Underhood heat management is the biggest killer of power on these outside of the actual engine tuning. These pull several degrees of timing as the intake air temps rise. One of the best mods to be done on these that would help with power is a ventilated hood if you don't already have one...

People asked for a giant condensed post for tuning, so here it is. My development thread can be found on the JL Wrangler forum: https://www.jlwranglerforums.com/forum/threads/hp-tuners-for-3-6-models-fixing-what-jeep-won’t.163856/page-11#post-3381158 I have a new Youtube channel...

I’ve heard the Cali horror stories, I’m in Illinois, still pretty shitty here but not to that level yet. I live in a rural area so not subject to emissions tuning either.

Deep within the software they can see flash counters, yes, but unless you have a supped up Hellcat, no one looks at or even cares what that is. I worked at one of the busiest Dodge dealerships in my area as a tech, not once did I or any of the other techs I worked with look for custom tuning...

You bet, warranty related stuff is by far my most FAQ

Sounds good, Tuning is not detectable by the way, I cover this in my JL threads, the P1400 DTC is disabled and won't appear and wiTech dealer tool has no way to see parameter changes or maps. I was a Jeep dealer tech at a large volume dealer and service manager at a smaller dealer BTW

I'm not nearly as active on the JT forum, but I am wrapping up tuning for @danelizer as we speak and I’m sure he can vouch that the tuning transforms the truck, although his GPEC2A hesitation isn’t nearly as noticeable as the newer trucks, regardless, it gets addressed in all my files.

It's not a transmission issue, check out my threads on here and on the JL Wrangler forum, a well documented issue and I've been the only one able to come up with a real fix, Jeep won't ever release a fix for this because they would have to recertify with EPA which they won't do on a dated engine...

Check out my threads guys, I have fixed this, it's a tuning issue, and no, Jeep won't ever fix it, custom tuning is the only way to fix it. I have a way more detailed thread on the JL forum with tons of reviews and the like as well here. Long story short, it is erroneous VVL high lift...

Been awhile since I shared some datalog info with you guys. And I have said from the get go that data doesn't lie, custom tuning is a must do if you want your Jeep running as best as possible and this log is proof! Wanted to share some datalog pictures and some estimate HP and TQ figures from a...