ive been poking around the interwebs for a few hours and couldnt really find a good route to take. I couldnt find flashpro offered for them, and it looks like even with the 02-04 ecu and adapter harness + o2 sensor the kpro will fail obd2 inspection. does hondata offer just the reflash for those cars/ecu's? any other options?

 

Damn I guess hondata doesnt offer anything (just checked). I was thinking of getting a 05-06 base mostly for the updated front end, but now that I saw this post it killed my dream..lol.

 

Hondata does offer a solution for the '05-06 RSX, but it requires the use of a '02-04 RSX to make it work. If you want to use your original ECU, you might consider the K-Tuner solution. Compare the features of each to make sure that it works for your needs.

 

There's a guy on ClubRsx that runs an 05-06 base automatic that was able to get KPRO to work. I can't exactly remember, but until I decide to get serious into tuning my base I'll just stick with getting a Ktune. You can send your 05-06 base ECU in and they will tune it.