PR3 and PR4 are the ecu codes for those cars
seems like they labeled different components with these tags as well
my b16 came with a P30 ecu and P30 is stamped all over the engine and components.... at least a few of them
sorry for bringing up an old thread but I have the same delimma. I have the PR3 stamped on it and I know its b16 but my question now when looking for parts in the US what will be the year that youre going to give them
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