With a charge cooled V2SQ and 3.33" pulley and MPH boost pipe I see 11 psi on the gauge at 5500. I am actually going to drop one more size to 3.12" shortly.....:dhg01:blmarlow said:Ok I have everthing done with my new intercooler install. I am getting 9 lbs of boost right now with the stock paxton 3.6 pulley. What size pulley do you guys recommond to get me to about 11 lbs. Will 3.33 do it.