GM 3 port or Grimmspeed
#14
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Join Date: Oct 2009
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I want to see some reasons as to why GrimmspeedBCS>GM BCS or GM BCS>Grimmspeed BCS. Not just oh, this one is better.
Which one holds boost better? It was said that the GM was easier to tune-How So? etc
Which one holds boost better? It was said that the GM was easier to tune-How So? etc