It's good to hear a +1 on the oil habit.
I went back and forth on the intakes, and I think it'll take some time to have a clearer answer on N54 vs. 3stg for the track.
On the stock 3.23 diff, the extra redline and top end power are a definite advantage as I don't need to shift to 5th. Now is it worth the extra engine wear and torque tradeoff on the street? I'm not so sure the extra tenths justify it.
Another flaw with the 7500 redline is it's harder to lend the car to other people when I don't want them taking all the way up there!
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