misfire is sloved according too the computer (replaced two bad plugs the rest are new) However driving it is werid WOT shifts are 5100k MAX wont go over. driving in city its almost like theres no turbo shifts are at 3k and 4k ! Can this be a hoses collapse which one . (i Have driven a s40 t5 with a "collapse hose " mines is driving the same way. What do i check first ?