Was really considering an EFR 6258 for my SR20DET. However, it seems that there are too many components that need to be changed. The benefits do not outweigh the cost, and time required, as compared to cheaper, easier bolt-on offerings by many other companies.
http://www.nissansilvia.com/forums/index.php?showtopic=479236&view=findpost&p=6116863
It's disappointing, and unfortunate that this is not a logical choice for people with SR20DET. Something the
tried to convince throughout, and in the final 30 seconds.I sincerely hope to be proven wrong.