I'm approaching 20K boosted miles on my HR-TT with no issues. UOA on every oil change is still looking good as well. This is a DD with 20 miles one way to work with speeds ranging from stop and go to "fast"
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Like the others have said, it's all about how you drive the car.
BTW ... If you take your GT-R to a track, you can kiss your warranty good-bye.