MK5 Golf GTI
All Things Mk5 => Performance Modifications => Modifications & Technical Area => APR Zone => Topic started by: 18Edition30 on August 07, 2014, 07:22:48 pm
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Just a query really......any idea what psi is would be boosting?
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I'm 20 psi till 4 k revs then up to 25psi and tails off towards red line