Don't know if anyone ever followed JR1's advice (it's been almost a year after all), but I was at my dealer today for this exact thing ~ thanx for the head's up on what to ask about! Turns out the 2007 RedLine had a Service Bulletin issued for this; it's now been updated to include the 2008 & 2009 models of the 2.0L Turbo Sky, (you're looking for document ID #2192887).
I also found out that there is an updated noise dampening Insulation Cover for the High Pressure Fuel Rail that will help reduce the noise. If your car is still under warranty, it should be covered ~ mine is! The dealer I use here in So Cal isn't sure how long it will take to get the part in, or even if they're on backorder, but it's not an emergency situation so I don't mind the wait!
Good luck to you!
