For the past few years my dream tuner Honda was the '99 Civic Si because the '99 Civics are my favorite Civics for their looks and I of course wanted an Si for its power. My logic was to get an Si because if you start with a more powerful engine then you get to your power goal faster and more easily. To my disappointment I couldn't get an Si because nobody in my town ever wants to sell theirs (in fact I've only ever seen four '99 Sis in my town). Then I was given the idea of an engine swap with the B16A. That seemed perfect. The Si powerplant that would fit perfectly into another EK4 Civic since it was the same chassis. Then I found out about the H22A4. Ah crap, I thought. I want this so bad but it will probably take a lot more work and more money. So for anyone whose done an H22 swap into a Civic, I ask you, if I don't want to sacrifice air conditioning and am going with a completely new programmable Hondata ECU how difficult is the swap going to be on a scale from one to ten and is it worth it over a B16A?