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allready had it laying around , and i dont have the stock pcm or the stock harrness for the swap so cheaper for me to , btw plan on making more then 550whp
The 1,2, and 3 bar OS's and real-time-tuning on the stock PCM were not available when you moved to BS3. Tiago (I know you know, saying this for others reading) just made about 1100rwhp on his LSX build with a 3-bar OS on his factory PCM: http://www.ls1tech.com/forums/showthread.php?t=804656