hondeffinate Posted October 20, 2009 Share Posted October 20, 2009 i have a 94 honda prelude and it has a h23a1 all options 5 speed and the title shows SI/SR never seen dual code need to know what this means please email me if you can help because the dealership doesnt even have the answer my email is ml_schwan@yahoo.com thanks for your time and help!!!! Link to comment Share on other sites More sharing options...
Humphries Posted November 2, 2009 Share Posted November 2, 2009 Si stands for "sport injected" just a trim level placed on the car based on motor and options that came standard on that trim. Si/Sir is the same thing. Just Si is USDM and SIR is Canadian Link to comment Share on other sites More sharing options...
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