i have a boosted ls/vtec i drive it everyday and not had one problem except for a low rev here and there but nothing to worry about but my bottom end has jdm type-r intenals and im using a gsr head which all know raises compression due to the smaller combustion chambers it was all motor before and i just threw a 3 mm headgasket and a nice fine tune on a hondata s200 and im good to go all day not gas is just a killer lol