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      06-11-2009, 09:09 PM   #2
grkm3
Lieutenant
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455
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Drives: m3
Join Date: Jan 2007
Location: MA

iTrader: (0)

basically the intake and exh cams are moving(advance,retard)with different engine loads and demands.

its like vtec but threw the whole power band,not just a cam advance at 6k.
Appreciate 0