IHI actually uses the twin screw design vs the roots design all the other OEM's are using. I prefer the twin screw design for the added high pitch whine and performance. But I would rather have a top mounted supercharger over the reverse mounted units for ease of swapping to a larger blower. There's limited room in the valley for a supercharger unit.Ill take Eaton or Whipple thanks, Mopar boys can have IHI or whoever
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