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Old 04-27-2009, 06:38 PM   #1
Scooby Newbie
Member#: 54290
Join Date: Feb 2004
Location: Denver,CO
09 WRX

Default 09 wrx spt boost gauge question

Me and some friends installed the SPT boost gauge on my new 09 WRX last week. I am still breaking the car in, so Im keeping the RPMs below 4K. My question is, If the stock boost is 13.3 psi, why does my gauge sometimes shoot up as high at 17PSI for a second when I floor it in higher gears even still below 4k rpms?
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