Ktuner V1.2 Flash OBD2 ECU Programmer for Honda Civic, Accord, CR-V, Acura, More

I've tuned nearly a dozen cars of mine. Used 3 or 4 companies to tune with. And I can easily say that this is the most flexible, most powerful, and easiest software to use. Very intuitive. If I had 1 bit of advice for the owner... Make an official YouTube tutorial on how to initiate the first tune. The lack of directions is daunting. But once you dive in, it's amazing.

You will have lots of maps for your engine and they are all safe to use.

Night and day difference! Being able to download the app on a phone or tablet helps you keep an eye on the car's vitals and gives me peace of mind.

It works but software seems very unreliable and it's a pain in the *** to try to flash ur ecu. Flashed my ecu to include catalytic 02 sensor disable this morning and the code still flashed, hoping it was a one time thing. If it turns on again I'll reflash and scan for possible other errors. The map tunes seem fine not sure why it didn't disable.

It was easy to use, definitely made a change but it came with a cable that wasn't working. I had to look around the house for a different usb cable to connect it to my laptop.

I don’t like the manufacturer restriction to use this device only for one car - you should register it via Internet every time you enter the program and it is impossible to calibrate other car until you unregistered device on the car where you used device before …. This marketing trick is discussing …. Other disadvantage is that program don’t have build-in programming settings for Honda/Acura cars - only for some of them so if you are not a specialist it it impossible to understand what parameters exactly to switch when you - for example - need to install down pipe …. Besides the official customers service is discussing - when you ask them to help you they ask you to read manual where you cannot find any special information only basics

Flashed my 21 accord 2.0t and it went smooth. I have watched YouTube videos before this.

I don't have actual numbers, but the "butt dyno" reads HUGE power gains over the stock tune. Installation was pretty straightforward, though I freaked out a little bit when I got all the various error messages after the flash was complete. Basically all the driver assistance programs were disabled after the flash, errors all over the instrument cluster, but driving the car for about a minute seemed to reset all the sensors and now everything's working fine. Words of advice -- make sure your laptop is charged to 100% and that you're connected to a stable and fast wireless network before you get started. All in all, significant increase in power for not a whole lot of money. Great buy!