I thought about getting one before settling on a Ktuner. I don't know I've read anyone here that has used one, it says it's a 10 minute installation but it honestly looks like a huge hassle and pretty sketchy. Ktuner is far easier than I could've imagined and you can fine tune without worrying about screwing anything up, it's also just as easy to go back to stock.https://shop.redline360.com/product...-honda-civic-si-1-5l-2017-2019-plug-play-tune this is what I’m talking about.
I believe that they are effective - like putting in body stripes and decals (specially the NOS sticker)Has anyone tried those plug and play chips that is plugged in to the OBD reader? Do they work and are they safe?