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Remdogg, is you car a CRD or DI? Mine is a CRD and it peaks at around 16psi under hard acceleration but then goes down to 14. At 100kph it sits between 11 to 12 psi. Car feels really good. If I try and lower the spool rate to get the cruising boost slightly lower the car does not feel as good. Higher boost does not seem to make it run better so I think tune by the way the car feels is important. They are all different.