I have a 00 9-3 aero (b205r with the mitsu TD04-15t turbo - i guess). this turbo should be water cooled (i strongly believe so, it's water cooled on mitsubishis and subarus). on my saab there's no water cooling (just the oil cooling). is this normal? or do i have the wrong turbo (maybe a garret of some sorts) ? i looked all over but didn't find any coolant lines (just the oil cooling setup)