Yes. I am really intrigued by both the Needswings full custom manifolds and their tweaked stock manifolds. If they meaningfully reduced the boost pressure it would help the supercharger dramatically. The discharge air temp would be reduced as would the HP required to turn the supercharger. In fact, wouldn't the primary increase in HP to the wheels from the manifolds be from the reduced HP used to turn the blower? We have positive displacement superchargers, which means that they move a relatively fixed volume of air per rotation.

The manifolds are so expen$ive though... I am not convinced that intake manifolds would yield enough additional HP for the $$ to make me happy. Same story with exhaust headers (longtubes or shorties). Except for nitrous, I am not sure there are any more mods that would make good HP for the money. What's next? Convert to ethanol?