You may be able to have the injectors rebuilt. My understanding is that they are designed to be serviced. When they are serviced, the spray pattern and opening pressure are set to specs. Its much more reasonable in cost than replacing the injector. Any competent Bosch repair facility should be able to do it. Have them all done and marvel at what a difference it can make.
[This message has been edited by JDEN (edited 01-07-2000).]