I'm running the R8 also. I still have some tip in knock only after I drive the car for an extended period of time. Especially after I shut off the car and let it sit for 10 min or so the knock is much more noticeable. I thought I was the only who's feeling the hesitation lol. I have that problem too and lately my idle has becoming unstable at times and stalled on me twice coming to a stop sign. It's weird cuz the idle drops below 500rpm after I come to a complete stop and that's when it stalled. The tunes has improved but problems is still there. My morning drives is perfect when the car isn't so hot but after it's completely warmed up and oil temps at 205f the tip in starts occurring. They also need to work on the power also.
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