Cons- Item is not nearly as well constructed or durable as has been lead to believe. The cable doesn't lock into the device so minor movements will cause the device to power down and go into a recovery mode. This adds significant time and risk of damaging original programing (which the owner is required to pay to fix) The case is made of very light plastic as well which offers little protection to the internal components. The programming is glitchy I updated the device prior to starting the process per the user’s manual. During the process the device said my vehicle was not supported and would require an update. So I repeated it. Then after the device had to reboot because the connection cable wouldn't stay in; after it had accepted the vehicle and started the tune; it said again that my vehicle wasn't supported again and required the same update a third time. It also doesn't support tire adjustments very well. I had to reenter my tire size several times for it to register the change and not freeze. If you attempt to adjust certain settings such as the traction control feature it will freeze the unit and you will have to do a hard reset on it with the hopes that it doesn't damage the original programing or that the backup copy it makes doesn't get damaged as well. Took 2 hrs between the updating, re updating, and re re updating, recovering, and freezing to finally reprogram my vehicle and was able to adjust my tire size (speedometer not yet verified for size adjustment). Pros- Item is California legal Item allows for multiple tunes of the same manufacture Wireless for updates Works as a code scanner Follow ups- No significant gain in power from how it feels or MPG gain from how the gauge reads. Will have to do more tests to verify these pros. Read full review
Verified purchase: Yes | Condition: New
got this i3 tuner before the holidays and took my challenger for a test drive and wow what a difference. well worth the money spent. 0 to 60 in 4 sec and you can always go back to stock mode. just be careful with this product a ticket with the cops is for sure
Verified purchase: Yes | Condition: New
I have so far been able to get or squeeze 2-3 miles per gallon out of my mpg's. the responsiveness is also so much better. I recommend this product.
Verified purchase: Yes | Condition: New
Worth every cent, if your into adding some horsepower or saving money on gas. Tune the vehicle for your needs. Awesome product.
Verified purchase: Yes | Condition: New
Easy to use and the power increase in your car is awesome!!
Verified purchase: Yes | Condition: New