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      06-22-2010, 05:25 PM   #24
michifan
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Drives: 2008 SGM BWM 135iC
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Quote:
Originally Posted by ianc View Post
Decrease it of course.

Anytime you add more stress and heat to mechanical components, you shorten their service life. Is it worth it? You decide.

ianc
In theory you are correct, but the real unanswered question is the marginal effect of the booster systems.

I'd opine that rigorous maintenance (the old BMW schedule) would provide more life than any tune within the components capabilities (JB+ / JB<7) would take away.
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