Does anyone know what the stuff that keeps the ends of the fins glued to the car is called or where to buy some or something comparable?

 

3M automotive trim tape.

Walmart carries it in the automotive (paint/touchup) area.

 

Sweet thank you

 

Be careful if you remove them, there is also 3 plastic clips which slide into 3 holes and I think 3 pins into 3 holes also.

 

Yep. I didn't mention that. It's best to remove the wheel well liner and feel around in back.

You'll see. Kinda'!

 

Yea I read about them I found it was really easy to use fishing line to break the molding tape and then pull the ends out a bit and stick a plastic putty knife in and push the pins and they all popped out super easy without scratching the paint