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Old 06-14-2006, 05:14 PM   #1
Scooby Specialist
Member#: 96448
Join Date: Sep 2005
Chapter/Region: Tri-State
Location: NY
02 WRX VF34

Default Stage 4 hitting just 12psi in 4th gear...

My friend recently upgraded his stage 2 WRX to stage 4.

AP VF34 map
VF34 ported
Perrin turbo inlet
Borla header
catless TBE
Stock intake
Stock T-hose and "pill" from TD04

Now, problem is that he's only able to hit 12psi at max... that's what's read on AP live meter and defi boost gauge. Can someone point to where he should look as far as fixing the boost problem? He doesn't hear any whining or high pitch sounds which would point to potential leak problem...

Your help is appreciated.
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