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Old 07-09-2019, 08:08 PM   #4717
shemoves
Scooby Guru
 
Member#: 80663
Join Date: Jan 2005
Chapter/Region: SWIC
Location: Glendale, AZ
Vehicle:
2005 STi

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How much additional power (rough estimate) would water-only injection make on a stock turbo STi with an exhaust and tune?
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