its been running a full decat for at least 4 years and a full 3" for the past 2, the car was remapped thro re motorosport in leeds, so basically a dont think its because a dont have a decat, guy before me put a RCM ceramic coated downpipe and wraped headers plus got it remapped to 330bhp said the guy that did the remap was the scoobyclinic mapper thats where the rolling road graph came from so ad think they would have tweaked in what you said , basically thinking its 1 of my lamda sensors