Received my matte spoiler yesterday and installed same day. I taped it to the car after install and let it sit for 24 hours.
I can compare this to an OEM one as I have had a brand new never installed spoiler that I installed it myself.
The RPM one is MUCH lighter. It feels hollow while the OEM one is not.
My RPM one came with a minor blemish on the inside that I decided to file down a little before install. It was a small bubble.
The center fits tight to the trunk lid while the edges are not quite there. As if the curve is not tight enough but its very close.
The right side edge, I could not for the life of me get to sit closer to the trunk lid than it does. There is a noticeable gap that will not push closer to the body no matter how hard I try.
Installation was straight forward. The OEM one has two datum pins that you pre install to help line things up while the RPM one is just stick and go. The OEM one is very easy to install and installed perfectly my first try. The RPM one was a bit finicky as you have to line up not only the top but the bottom as well since it sits on the lip of the trunk. The pre refresh spoilers just attached to the top so you just had to press down.
I dont know if its my fault on the install or if its the curvature not being perfect with the trunk but the area between the center and the edge is up above the trunk a slight bit. I can push it down tight by hand but it springs right back up. It looks like its sorta floating between the center and the very far edge that didnt sit flush.
I hope all that made sense. Im terrible at explaining things. Hopefully the pictures help show what I was trying explain.
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Got mine today. I did have similar gap issues as @silentsnow31802 couldn't get the spoiler to sit flush on the corners, just in the middle...mmm....don't know, what the heck is already on, but def needs to be improved. I wish I would have spent less for this instead of almost $500 for this kind of fitment.