Let's say I'm fond of the spikes on my spiked armor for whatever reason (they are MW or +1 ect..) and I find new armor taht I want to wear. Are there any rules against removing my spikes and installing them on the new armor?
Apart from them being kind of a part of your old armor? Not as far as I can tell I'd rule against it myself though.
I'd probably tell you to make a Craft: Armor check to get 'em off and then onto the new armor.