New ones do not exist. Have your injectors cleaned and flow tested. Had mine done and the difference between before and after was only 1 ml flow at 40 psi. These are good robust injectors. You can use injectors for the early model Honda Civic/Prelude as well. I have and am using a set of Autoline 16313 injectors, work well. Others have used SMP FJ267.
Cheers