The stock pulley is 3.5 and makes about 4lbs of boost stock. Now what ive been told is that the 3.2 pulley will make between 6-7lbs and the 3.0 makes between 8-9 lbs. I'm not sure why, Im guessing just diffrences in the 4.6 and 5.4 blowers makes different boost levels with the same pulleys.
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