I'm stunned that Dinan allowed these to go public with such a loose fit to the turbo. It literally wobbles on the turbo flange and has a gap about an eight of an inch around half of the turbo. I knew it would throw a code as soon as I got on the throttle aggressively, and low and behold....it did. The OE piece may be ugly, but it's a secure fit and isn't going anywhere. I'm really disappointed and surprised as Dinan is a great brand. Going to pull these off tomorrow, package them up, and send them back for a refund. Stockers going back on. Bummer as it's a big time waste and they looked killer. Was looking forward to an increase in throttle response too.