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      09-01-2012, 11:23 AM   #52
M&M
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South Africa
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Drives: Boosted Beemers!
Join Date: Mar 2007
Location: Johannesburg, South Africa

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Bob was 100% right. I have driven down to sea-level & logged boost at both elevations & the boost is around 2 psi more with the same pulley at sea-level vs 5000ft.