80mpg is way more than realistic. the 42city and 49HW that they put on the stickers is about right and you can figure you can do a little better but not 80mpg. now in my dads insight I can manage 60mpg. Even 32 in the rado when its together long enough to use a gallon.

Yes the master tech at CF is a great guy and is open minded too Plus there are a bunch of enthusists that are working now at CF which works for us. But if you install something and it causes problems well then you've screwed yourself. If its a legit VW problem then they will take care of you

Yes there has been a problem with coil packs just work with VW and they'll take care of you untill its fixed.