A close friend has an 04 STi and recently bought new injectors. In talking he mentioned that stock RX7 injectors are a direct fit into their fuel rails and manifolds. Also I believe that we (NA'ers) can use RX7 injectors as a direct fit in the rail and clip, so by deduction we should be able to use STi injectors if we get new clips. I believe STi injectors are in the 500cc area. Any one have experience with this? Might be another cheaper injector source.