Just took a look at mine and seems like its just stuck on by some adhesive. May have some left over residue when removing though which would be your main issue.
I had a little bit of difficulty putting in the screw thingies (they took a lot of force ) but if you put the plastic washer thing onto the screw thingy first, then use a pen or something to release it, it should help a bit. I found the plastic screws to be kinda tight.
Barely used for a day - Injen Sri in black. Works great - just want to keep my stock airbox and have no need for this anymore. Prefer not to deal with shipping so asking for 1̶9̶0̶ ̶1̶8̶0̶ ̶1̶6̶0̶145 local pickup (OC or la region ) or 145 + shipping if you are out of local range. For 16+ 1.5 l...