It could work. But very few people with the BSP knockoff KG Works lamps have modified them for projectors so there is a virtually nonexistent knowledge base. You'll be on your own with a project this custom. I recall seeing pics of someone who put Angel Eye rings in them so the lenses can be pulled apart and customized if you'd like. AAC does mods like this all the time for other lighting units. They might be able to offer some support but it'll cost you greatly. If DIY you might want to check the VWVortex and some Honda forums as the owners of those cars do this sort of projector conversion much more frequently and would have more experience to share with you on the actual process.
I think that's why he wants to put the projectors in so he can go to HID. Retrofitting HID bulbs into housings not originally designed for them is not only illegal but it produces poor quality light output. Nearly all automotive HID applications are designed for projector housings not reflex housings. The HID bulb is different shape/size than typical halogen bulb and the focal point for the light is different giving different optics with a reflex housing. While retrofitting the S2k projectors into BSP lights is still technically illegal it is more feasible than just adapting the stock reflex housings for HID bulbs.
First off, thank you for all the replies and info.
THe reason why I am doing the S2K/TSX projectors retrofit is not for the looks, it's for the output. I am going to do the whole assembly from projectors to ballast to the D2S bulbs. I should be posting up a DIY when I get to it in about a month. But before that, I want to make sure everything fits and would function properly. Well, if it has never really been done, I guess I will just try it out and see.
I am way interested in the results of this mod.
I have a set of the BSP dual lights that I recently removed because the reflectors in all four light housing were completely dulled from dirt/age. (I have seen a previous thread that said new housings are still available, but I would want better light out put).
I have been looking around the net for any info on possible lighting upgrades or other mods and have found nothing.
The moss lo pro's use the hella 90mm lamps. With the moss lights, you have to remove a bracket from both headlight bays to make the outboard (lo beam) 90mm's fit.
I was looking on yahoo Japan and came across these H1/H4 combos. Would possibly be an easy fit/mod into the existing wiring I would think...