Newman, generally people run BI-x projectors for high beams. You cant really just pull the shield off of a low only projector, youre going to loose a good bit of light thats just useless glare. Run 4 forward facing HID’s for lows and two (or 4 if you can fit them) of those are BI-x projectors for high beam function.
With a good lighting setup theres little need for highs, other than to smooth out the cutoff so your eyes can more easily adjust to the darkness instead of a sharp cutoff where the light suddenly ends.
And the integras are VERY easy to retrofit. Easier than most vehicles. There is a lot less work involved in retrofitting them. And if you take the time to do the retrofit, run OEM bulbs. 85122 or 85122+, not used, NEW. The 85122 bulbs color shift rather rapidly and start to go into the 5000K range and loose a significant amount of light. The 85122+ resist color shifting, but still loose a noticeable amount of light after 1000 hours, so they should be replaced every year.
It would be, and it would be easy enough. While youre at it i think those headlights use halogen Valeo projectors, which arent very good for HID’s. Swapping the projectors for new ones should be easy as long as they have 2.5" lenses. The highbeam area would be easy to shove a bi-x projector in there as long as there is enough space for the back of the projector.