when pushing a turbo so out of its efficiency window as the k03 is when its chipped, they begin to push hot air and just that. so an effective intercooler is necessary. these cars rely heavily on the IAT’s and going from a stock smic to a fmic people have regained 10-15whp and upto 40lb/ft tq that was otherwise lost from heatsoak/ timing pull.
requires a fair amount if you have a stock lip still, with a 20thAE lip, or a GLI lip in the case of the jettas, much less trimming is required. hes got some Oettinger bumper so it may fit quite well.