Howie, you are a life saver, my friend. I've got an '03 GTI LE, had it for only a few short years now, and didn't have a clue what was going on. Like DedHed, I was losing acceleration going into turns to the point where my seadoo bogged down entirely.
After following your suggestions, I noticed that my issue was my fuel filter being a complete and utter mess. Caked is the word I would use to describe it.
Thanks for your insight in regards to an OEM kit to purchase, $70 sounds like a steal - talk about relieved that I don't have to pay my dealer's mark-up cost.