From reading the link provided (if im reading it right) the power increase (section only) without certification is extra 20% above that of any of the engine offered for the model ( 351cuin/ 149kw) need to double check the quoted V8 power figures Makes the KW max for an XE 178kw (149x1.2) So if i put in a green rocker cover gas barra which i think are quoted @ 156kw I should be ok power increase wise Now to read all the other sections ! Sent from my iPhone using Tapatalk