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      01-28-2013, 02:42 PM   #26
Rob@RBTurbo
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Drives: 335I
Join Date: Jan 2008
Location: St. Louis, MO

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Nothing wrong with necking it down, provided the final ID spec is a good match for the compressor inducer. The jury is still out on the exact spec. Something tells me though that they did a good job optimizing them to the housings potential.