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Old 10-07-2004, 09:19 AM   #32
Scooby Specialist
Member#: 14934
Join Date: Feb 2002
Chapter/Region: Tri-State
Location: Long Island
2002 WRX


I think that much of the difference is in the tune. I have no doubt that a divorced wastegate tube will flow better than a flat plate, but I wouldn't expect those differences to be seen at engine speeds as low as 3500rpm's. The hp gains that you show for 3500rpm are pretty consistent up until engine speeds get over 6000rpm. I would have expected the gains to be small (if not zero) at engine speeds of less than say 5000rpm.
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Rich10 is offline   Reply With Quote