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      06-24-2015, 01:22 PM   #6
evo335xi
Lieutenant
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451
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Drives: 335
Join Date: Mar 2013
Location: Ct

iTrader: (1)

It sounds like it's building boost on the load of the gear. Does it happen in every gear at that rpm?, if you are giving gas in 3rd-4th and you hear it..its spooling up.
Appreciate 0