I just put on my 3dcarbon scoops with the 3m tape....I like them but I like to change and update alot...so How much of a ***** is it to take them off with the 3mtape? They dont move at all right now and just kind of kicking myself cause I think I want the Cervinis instead.

 

Fishing line and Blow Dryer.
Heat the scoop/tape area a little and work the fishing line between the car and the scoop working from front to back or vice-versa.
Use some adhesive remover, goo-gone etc. Good as new.

 

I had to remove my DG Customs louvers a couple of weeks ago that were held on with 3M tape. They were attached to the actual windows(not sure how "yours" are attached) and they were surprisingly easy to removed. I just started to pull on them on one end and they came off without any issues.