Whats the difference in stages in the Hondata ECU's are those stand alones or are they piggy backs or just replacements? I'm confused about getting a Hondata ECU for my Prelude. I want to know which one to get when building my Turbo Lude if they are good for that.

 

before everyone flames you, do a search on hondata, youll find PLENTY of archives that will answer your question. if you boost, hondata stage 4b is the way to go, rocket has a good deal on them going on right now. it is an arguement saying they are true stand alones or piggy backs, search the archives and you can decide for yourself about that.