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turbo question

444 Views 1 Reply 2 Participants Last post by  cummins crazy
How would i tell if i had a super b single or the super b special? I got truck with this turbo on it. Was told it was super b but they didnt know if it was a single or special. Thanks for your help.
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Measure the mouth of the comp. housing. The Super B is a 57mm and the Special is a 64.5mm wheel. You'll be able to tell once you get a half decent measurement.
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