Bolo

Where can I get the "N"'s ...does dealership have them?

diagnosticator1

Most VW/Audi dealerships will have some on hand, they are the specified PN for 2004.5 > only. So, you need to ask for them by PN, not by application.

06B 905 115 N

Also, I see that you are using the Nippon Denso Iridium plugs, if they have been in service for a while, I recommend you check the plug gaps. I am running IK-22, and found that the gaps had widened to more than twice the spec gap. They where toast.
But, I used a diamond wheel on my dremel, and sharpened the ground electrode, re shaped the center 'trode, and set the gap back to ~.030, now, the partial misfires I had are no more. The wear on the plug, as manifested by the increased gap, places additional stress on the coil packs, some of which can't take any more.

Bolo

Thnxs!.probably just buy 1 for now ,I'll do switching colipack on each cylinder till I find it.

diagnosticator1

While your at it, check the plugs. See edit above.

Bolo

Checked Plugs..gaps still at .030...but very sooty..Put Stock NGK's back on..problem is still there.

diagnosticator1

I have the same heat range plugs and the same chip software that you have and my plugs looked good for tip temp and fuel mixture with the TT225 injectors.

Bolo

Damn Injectors!....I can't even easilly go to k04 with different software cause I don't have TT225's

diagnosticator1

Yeah, that is frustrating, APR should have recalled those injectors.