im running the same map i only peek around 18 PSI and it drops off quite quick but i also did logs a while ago that gave me the same figures so even tho it was hoter this time theres something holding it back it just lack torque??
when you say breather could you elaberate? i have recipt for stage two altho its been hand writen and signd but says could not fine recipt its on a proper headed sheet and have spoken to the company that did it
What filter you got mate?