Hondata sounds wonderful. Are there any drawbacks?
That depends. The Hondata reflash and K-Pro are officially intended for off-road and racing use only. In California, especially, aftermarket changes must be CARB (California Air Resources Board) approved and come with a CARB sticker to prove it. Changing ECU settings is never CARB approved. A reflash could theoretically be CARB-approved (if Hondata went through the expense of having it tested and certified) because the customer cannot further change it. You can always have Hondata reflash a flashed ECU back to factory standard, or you could use two ECUs, one factory for road driving and one with the K-Pro modifications for racing. Another issue is that the K-Pro DOES requires both the ability and the willingness to learn and fiddle with software. If you want to stay away from that, a simple reflash may be the way to go for you. Finally, and this really has nothing to do with a Hondata reflash or K-Pro upgrade, make sure grounding is okay in your car! Hondata says, “It is very important