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when i baselined my m6 06, it was 342. That was average according to HPE. You should expect approx. 12-15 rwhp, no tune, but keep in mind that eastcoast supercharging has gotten almost 50rwhp out of some stock, no modded, auto lsx's. If it'll be a while for more mods,go ahaead and get it tuned by someone who knows lsx's
 
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