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      04-05-2016, 08:09 PM   #4
puppydax
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Drives: E82 135i
Join Date: Nov 2013
Location: Sacramento, CA

iTrader: (4)

Garage List
2009 BMW 135i  [0.00]
2016 Viper ACR  [0.00]
2007 BMW 335i  [0.00]
I have a Spec 2+. Sounds the same. When you rev, sounds chattery till you get higher in the RPM. Same when you're at idle and start to accelerate slowly. Normal .
Appreciate 1