274° stage 2 split lobe design cams to promote swirl and maximise cylinder filling efficiency. Suits street and motorsport applications such as track days, roll racing and circuit racing. Suits engines with upgraded turbos in the 54-62mm range, 1000hp-1400hp. Good increase in mid-range to high rpm power. Must have upgraded valve springs, Kelford Cams recommends KVS38-BT valve spring kit.