I put almost 100k kms on that car with fram filters because they were good enough and I could get them in town. Never once ever had a problem. On my TSis I run the NAPA gold (WIX) or Purolator filters because they are better quality, if a hassle for me to get.
The reason you might see a problem on a turbo, especially a modded one, is because the downpipe/o2 housing will be right there, hot as hell, and often without any kind of heat shielding. But then if you run a turbo without any kind of heat shielding you pretty much deserve those problems, along with dead alternators, baked valvecover gaskets, high general underhood temps and everything else that goes with it.
There's no excuse for not checking the oil filter housing after the old filter came off to make sure the whole gasket cam off either. More than one engine has been lost due to carelessness there and it's SOP in my garage.
As for the spoiler I think it's a universal one that had the notch put in later. When I repainted it, it looked that way.