This is OEM Honda Aluminum AC Bracket as found on the JDM DC2R. Direct Bolt-on to any EG/EK/DC with B-Series motor.
For those of you with B series swaps that wishes to retain AC, you can use this instead of the Del Sol VTEC AC bracket and your civic AC compressor will also bolt up to this as well!!
You need to tap threads into the holes and drill and thread a hole for the tensioner and tensioner bolt. In addition to this a very small amount of material needs to be removed for the compressor to fit perfectly. It sounds like a lot of work but is quite easy.
Full Cast Iron = 7lbs.
Hollowed Cast Iron = 6lbs.
Full Aluminum Mount = 2.4lbs.