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      02-24-2010, 03:58 PM   #49
SfValley335i
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Drives: Current:135i Sold:335i sedan
Join Date: Mar 2007
Location: City of Angels

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So this upgrade is just changing the compressor wheel and clipping on exhaust turbine?

The turbine shaft is very thin, adding the much larger compressor wheel will add huge amount of pressure on the shaft and cause problems. That is what I was told by two turbo shops thus I gave up on the whole upgrading stock turbos. Only time will tell.


Goodluck