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Old 10-12-2012, 12:33 AM   #4
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Join Date: Feb 2006
Location: Chicago - Greece
Posts: 474
My Ride: Max PSI Stage 2
Usually the smaller the blower pulley you go, the bigger crank pulley you go. This is to prevent belt slippage and whatnot. Smaller blower pulley = more boost = more power. You will have to check with VFE to see if your injectors can handle the new pulley setup. And then you will need to be retuned of course.
Follow My Builds: Max PSI Stage 2 E46 M3 Turbo Build | 1972 2002 Restomod Build
2004 BMW E46 ///M3 | Maximum PSI Stage 2 Turbo | SMGII | Non-Catted | 711rwhp | 578rwtq
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