Now available for the 2006 and newer Civic Si is the Hondata FlashPro! The flashpro allows full tuning of the Civic Si directly through the diagnostic port. No physical modification to your Honda ECU is required!
The Hondata FlashPro is a hardware and software combination that connects from your laptop's USB port to your Civic's diagnostic port. The FlashPro Manager software for the Civic comes with many starting calibrations for a number of intakes and injector sizes. It works on all US R18 Civics, both manual and automatic from 2006 to 2010.
KTuner Flash-based system for 2006-2011 Honda Civic Si and 07-11 Civic Type-R. The KTuner Flash system allows you to reprogram/reflash your stock ECU directly over your OBD2 diagnostic port. No need to remove your ECU, etc. Simply plug the KTuner Flash system into your OBD2 port under your dash and reflash or tune your car using the KTuner software.