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This is my experience;
97 Boxster with original IMSB: 130,000 miles (75 track days, over 1,000 runs up to rev limit and >100 continuous hours >5K rpm)
99 996 with original IMSB: 128,000 miles
That's all I'll say.
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1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
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