Stock jetting on the tt store FCR mx39 carb

Hey guys I'm new here from Australia ,I been reading a lot of your forums and thought I'd join up :)

I have a question that may have already been answered but I can't seem to find the answer I'm looking for , my question is ,,, the FCR mx 39 carby for the drz400sm from the tt store comes jetted already , it says the carby is suited for the 3x3 mod and full exhaust from sea level to a couple of thousand feet, now my drz has a full MRD SSW exhaust 3x3 mod , I'm looking to buy this carby asap but will that stock jetting work with my setup ??? Or will I have to play with the jets? From Sydney Australia

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