In Control: We Install Ultimate9’s EVCX Throttle Controller

After reading about the Ultimate9 evcX throttle controller we were excited to try it out, so we installed one in our 2018 Chevy Colorado ZR2. We often use the truck to explore forest roads and trails near its home base in the Pacific Northwest and we wanted the ability to fine-tune the truck’s throttle to adapt to the terrain. Spoiler alert: The evcX was incredibly easy to install, it’s simple to use, and the ability to fine-tune the throttle on our truck has resulted in more off-road control. “Staggering” is the word used by the truck’s owner to describe the positive result of the evcX’s features.

Our evcX, just like all evcX applications, came with everything we needed to complete the install. The box contained the “driver interface,” evcX unit with wiring harness, a pair of zip ties, spare adhesive pad for the back of the driver interface, carry case for the driver interface, quick start guide, an app guide, and pair of evcX stickers. 

What Is Ultimate9?

The evcX is produced by Ultimate9, an Australian company. It specializes in throttle control for vehicles. The company’s throttle controllers are stocked by all the major automotive retailers in Australia as well as many independent shops and mechanics. Ultimate9 has a foothold in the U.S. as well. In Australia, Ultimate9’s throttle controllers are the most recognized and trusted due to being a quality product at a reasonable price point. Also, a lifetime replacement warranty and hassle free returns and replacements.  The company was founded by members in the four-wheel-drive industry who have worked for some of the largest 4×4 accessory brands globally. Thus, Ultimate9’s focus is on four-wheel-drive vehicles and the benefits of throttle control. However, the company makes throttle controllers for a wide range of other vehicles.

Prior to installation we ensured the truck’s ignition was switched off for 10 minutes. This ensures the truck’s electronics had powered down. This reduces the possibility of an engine fault code. Then, we disconnected the factory plug on the top of the pedal assembly and plugged the evcX in-line between the factory plug and pedal assembly. We used the included zip ties to fasten the evcX to a solid object and then we routed the driver interface cable inside the center console. 

About The EVCX Throttle Controller

Quite simply, the evcX allows you to fine tune your vehicles throttle. It offers 8 driving modes, 32 levels of adjustability, and a theft-thwarting Lock Mode. Ultimate9’s evcX is plug and play and can be easily installed in less than 15 minutes. The controller is simply connected in-line between the factory plug and throttle pedal assembly. The evcX driver interface with OLED display can be placed on the dash or console of the vehicle. The evcX offers eight modes:

  • Ultimate9 Mode: Maximum throttle enhancement. It sets the pedal response to the highest setting.
  • Ultimate Mode: This allows enhanced throttle response and the choice of nine sensitivity levels to fine-tune your vehicle’s response.
  • Launch Mode: Improved takeoffs with controlled, maximum throttle enhancement. Launch Mode’s initial response is modified compared to Ultimate9 mode to try and reduce wheel spin and increase traction.
  • Adapt Mode: This mode chooses the best Ultimate throttle response based on your pedal input.
  • Eco Mode: Subdues throttle response for greater control on loose, uneven surfaces such as when off-road. With nine levels to choose from, Eco Mode is great for off-road, heavy traffic and low-speed towing maneuvers. May also help improve the economy of your vehicle.
  • Anti-Slip Mode: Reduces throttle response and limits rpm to help increase traction. With nine levels of sensitivity, you can gain more control when navigating slippery surfaces such as snow, ice, and mud.
  • Valet Mode: Designed for parking, it reduces throttle response while limiting the available throttle to provide approximately 50 percent maximum rpm.
  • Factory Mode: Replicates factory throttle settings, ideal for sharing your vehicle with an unfamiliar driver.

The driver interface has a port on each side to accept the cable from the evcX. The driver interface comes with an adhesive mount, but we mounted the driver interface to our Colorado’s center console using a permanent custom mount. It’s worth noting that Ultimate9 offers a dash mount and a vent mount for the driver interface. We drilled a hole behind the mount as a cable pass-through and then plugged it into the left side of the unit.  

There’s An App For That

Another cool feature of the evcX is its app that offers wireless control of the evcX. It’s free to install via the Apple App Store, Google Play, or QR code provided in the evcX instructions. The app is simple to use and allows you to easily explore your evcX’s layouts, color schemes, modes, and sensitivity levels. You simply wirelessly pair the app to your evcX according to the instructions. There’s no need for mobile data or Wi-Fi to adjust your controller’s settings via your smartphone.

We downloaded the evcX app and then scanned the barcode on the box with our phone to pair the app with the evcX via Bluetooth. At that point, the evcX was ready to use. The app is easy to navigate, and the home page offers easy access to the Driving Modes.    

The EVCX Can Thwart Thieves

The evcX also offers a Lock Mode that’ll thwart thieves. It accomplishes this by disabling all throttle input. This feature operates as an extra protective layer for the vehicle, ensuring unauthorized access is obstructed effectively. Unlike traditional throttle controls, which are physically visible, the throttle controller in the evcX model can be solely managed through the accompanying app. Consequently, when in Lock Mode potential thieves are unable to identify the source of throttle unresponsiveness easily. Moreover, for users who prefer a display screen interface for throttle control, the evcX driver interface can be used to activate Lock Mode and then it can be conveniently disconnected and carried along or concealed within the vehicle before leaving it unattended.

The app is a great tool to use with the evcX, but it’s not mandatory. You can control the evcX through the driver interface if you wish.

Yes, The EVCX Can Be Used With Other Performance Products

Ultimate9 says the evcX can be used with other performance products. In fact, the company says that the evcX is a great compliment to many aftermarket performance modifications. For example, ECU tune, dyno tune, ECU remap, power chip or ECU reflash focus on many parameters outside your throttle pedal response. Parameters like fuel injection, ignition timing, boost pressure, and so on. And, while some tuners also include pedal mapping in their services, it is also often non-adjustable. Example: Your tune/chip/remap may be too aggressive for driving off-road or in wet conditions. With the evcX, you can subdue your throttle response and have far more control over the power to your wheels. Alternatively, if you have the power but suffer from lag or means to access your optimal power range, the controller can enhance your throttle response.

Our Experiences

We’re impressed at the evcX’s wide range of settings and how they work with our Colorado. Right out of the gate we chose Ultimate9 mode, which the company says unleashes the “full potential of your engine.” The difference between the stock throttle setting and Ultimate9 mode was “staggering.” It provided incredible throttle response. Conversely, there’s ECO Mode, which dampens initial throttle response for more control in slow-speed trail situations. Interesting side note: Testing is indicating that running in ECO mode has slightly improved our 4x4s fuel mileage. Overall, evcX is one of those products we never knew we needed.

More Info

For more information about Ultimate9’s evcX throttle controller, visit the company’s website. You’ll find additional information about the features and benefits of the throttle controller as well as complete application information.







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About the author

Ken Brubaker

After learning to drive in a 1967 Rambler American, Ken was addicted to all things with an engine and wheels. He has owned a wide range of vehicles including a pair of 1977 Pontiac Trans Ams and a 1997 Jeep Wrangler.
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