2007 Wrx Vf39
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01-24-2009, 11:13 AM
St Paul, MN
21-22 PSI is fine in the midrange with the VF39, as long as it doesn't overboost on the highway. I'd be more concerned about the "boost bump" at peak torque there. Looks like your tune is overshooting boost targets and overcompensating.
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