Are all the obd2 civic injectors for b and d series engines 240cc, regardless of weather its a dx, ex, or si or are they different? What are the flow rates among engines if they are different? I am running a basic b20vtec setup in a 97 ex coupe and one of my injectors has a slow leak. I'm on the stock ex injectors which I have been told are 240s. If I get a replacement injector from a d-series will it work? I was also thinking about upgrading. Will 97-up prelude injectors fit (without modifications) and what flow rate do they have? Thanks.