Jeep Wrangler Performance Chip Guide

Jeep Wrangler Performance Chip Guide

Last Updated May 26, 2022 | Andrew Boyle

Serious Jeep Wrangler enthusiasts know the joy of tinkering with every last part of their rig. From bumper to bumper, there’s a way to upgrade every last part of your Wrangler. If you’re aiming for the ultimate 4x4 vehicle, however, then you might be interested in fiddling with the digital part of your Jeep.

Performance chips, which are sometimes called tuners or flashers, allow you to access the parts of your Wrangler’s ECU that are normally inaccessible. There are plenty of parameters you can edit with the help of a chip. From calibrating your speedometer to reflect larger wheels and tires to setting a higher idle RPM, there are an astounding amount of varied things that performance chips can do.

Touchscreen Jeep Performance Chip

Performance chips are an absolute breeze to use. Many of them simply plug into your Wrangler’s OBD port. The JL Wrangler does require a bypass module for some performance chips to function, but for the most part, the installation is just as easy.

What Can Performance Chips Do for Your Wrangler?

There is an impressive variety of things that tuning chips can do for your Wrangler. To give you an overview, here are some of the most popular features of tuning chips.

Speedometer Calibration

For Jeep Wranglers, bigger wheels and tires are a must. The look of a lifted Wrangler with oversized wheels is undeniably cool, and it can come with a performance boost as well. One of the issues with larger wheels and tires, however, is having to properly calibrate your speedometer. With a tuning chip, you can adjust your speedometer to accurately reflect your speed. This is great for both larger wheels and tires, as well as different rear gears.

TPMS Disable

For off-roading, airing down your tires is often necessary. If you want to loosen up your tires a little bit but don’t want to see the warning light on the dash, then temporarily disabling the TPMS system can do the trick. A chip will let you do this with ease.

Raise Idle RPM

If you are running an electric winch on your Wrangler, then raising the idle RPM can give it more current to pull from. This is a great option if you have to do some serious winching and don’t want your Jeep to lose its charge.

Full Data Readouts

This isn’t necessarily a singular function as it is a whole suite of them. There are plenty of data points that your Wrangler measures that you can’t see. Some chips even give you the option of storing logs of these variables as well, giving you the ability to peruse large amounts of data about your Wrangler and its performance.

Throttle Response

Hand held Wrangler Tuning Chip

Improved throttle response is an easy way to make your Wrangler feel brand-new. The correlation of throttle to acceleration is determined by the Wrangler's computer, so this is just as tweakable as any other parameter. A more sensitive gas pedal can make your Wrangler feel sportier and more powerful than it previously was.

Improved Performance

Let’s not forget about the performance aspect of performance chips. There are plenty of ways that a tuning chip can adjust the settings in your Wrangler’s engine to give it more power. From valve timing to fuel mixtures, there are plenty of ways that your Wrangler’s performance is governed by the ECU.

By being able to tweak the ECU at will, your Wrangler can see some serious gains. There are electronic tuners available for both the 3.6L Pentastar V6 and the 2.0L turbo.

Tuning Chip Concerns

A common question is whether or not a tune will void your Wrangler’s warranty. For the most part “no”, but there are some technical legal nuances to this answer. At the end of the day, we are an automotive website, not a legal one.

OBD Port Location on Jeep Wrangler

The long and short of it is that if your Wrangler’s problem isn’t directly traceable to the tuner itself, then the warranty is not void. Under the federal Magnusson-Moss Warranty Act, dealers have to honor warranty repairs given that they weren’t caused by any aftermarket components.

This ultimately is up to the dealership to decide, however, and is liable to change from location to location. If you have a tune installed on your Wrangler, the dealership may refuse to work on your vehicle. That being said, they won’t void your warranty specifically, but rather, wait for the tune to be removed before working on the vehicle itself. Also, remember that a dealer will be able to tell if a vehicle was previously tuned, even if you reset it to stock.

If you’re looking for that next big mod for your Jeep Wrangler, then a performance chip might be the exact thing that you are looking for. The extra functions and options that they will open up can let you fully customize your driving experience to be exactly what you want.

Newsletter Sign-Up

Andrew Author Photo

About the Author

Andrew is a Jeep TJ owner and car industry aficionado with over 150 articles under his belt. Read full bio →

Jeep Wrangler Performance Chip Guide

If you want to get more power and control over your Jeep Wrangler, then a performance chip is for you. These devices can improve many aspects of your Wrangler owning experience, from turning off TPMS sensors to calibrating your speedometer.