Ported intakes
I have been looking at the ported intakes from Z1 and Soho .. I noticed Z1 states that they recommend using their ported upper intake but Soho only has info with their lower .... the gains on a boosted car was ~30 ish after 5k rpm from Soho lower only ... is their any difference on the porting of the lower manifold from Z1 to Soho .. would the gains be about the same ... woukd Z1 need their upper yo match Soho or would the upper increase either Z1 or Soho ....... most info I find is on a N/A 370z , I’m sure some boosted guys have tried these out
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