No, same single phaser. The dual phaser is on the NA version. I don't really see any value in upgrading except weight. The composite ones are a bit lighter. But I don't think there's enough juice to squeeze to make it a worthwhile change. Just pull off the aluminum covers and powder coat them...mguy13sport said:Interesting finds with the valve cover switch from 2013 and 2015. I have a 2013 with the aluminum covers. Could I "upgrade" to the plastic covers? I thought they had dual phasers with an extra VCT sensor? 2013 is single phaser. I assume they are lighter and like you mentioned have better PCV design. I mostly just want the black look haha.