![]() ![]() I used OBD data logging to track my RPM, speed, and some other parameters. For reference, my car is a CA emissions (I'm in NY), which required me to install the CA tune from Hypertech (installing the federal one isn't allowed by the unit). I took the snorkel off of my air box for a bit more noise but I wasn't able to measure any performance improvement with that.Īnyway, to test it, I took my car to a big hill near me and did pulls in 3rd gear before and after installing the hypertech (I installed the hypertech in a parking lot between runs). I've seen people making decent gains with them and found one used for $235 so I went for it! Shipping from Stage 3 Motorsports was fast, so that was a nice, added bonus.As the title says, I got a Hypertech Tuner for my Mazda 3. The adjustments this device makes can be made in as low as half inch increments, so getting things dialed in shouldn't be too difficult. For those who may be wondering.yes, this calibration device comes with a "return to stock" feature. Try to find a flat, open road where you can cruise steady for the best comparison results, then adjust if necessary. Get yourself a quality GPS app, and compare the GPS speed data to the speedometer in your vehicle while driving. Don't be surprised if the tire size you program is actually a bit smaller than the actual diameter of the tires you installed. As some of the previous reviewers have stated, there may be a bit of trial and error to get things dialed in just right. This is roughly 2 inches larger than stock in diameter. I got rid of the 20 inch wheels in exchange for aftermarket 17's with LT285/75 R17 tires, which measure about 33.8 inches in diameter. My application was a 2020 F150 5.0 4x4 that came stock with P275/55 R20 tires. Be patient, and read all of the menus the device presents you. Once the initialization procedure is complete, things are pretty straightforward. This takes a bit of time, thus one of the needs for a full battery charge. The first time you use this device, it needs to read your vehicle information. You do not want to perform any type of re-flashing with a questionable battery. A few things to note.make sure your battery has a full charge before you start using this device. This Hypertech speedometer calibration device worked perfectly on my 2020 F150 5.0 liter. The Hypertech unit can only change tire size on a single vehicle at a time, and cannot be used to adjust tire size on multiple vehicles. Each Hypertech kit comes standard with the device, an OBD-II cable, USB cable, and manual. The Hypertech Recalibration tool can also read and clear DTC codes, and can accept firmware and software updates from your home PC. Specifically designed for adjusting your F150's & RangerPCM for new tires, the tool works quickly and efficiently to fix your speedometer so that your truck reads both speed and mileage correctly. ![]() The middle ground is Hypertech's Tire Size Calibration Tool. ![]() To correct your truck's computer, you'd generally need to bring your truck to a Ford service center or get a custom tune.
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