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      01-30-2013, 10:35 PM   #4
deluxe 247
Shake and Bake
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Drives: the girls crazy
Join Date: Mar 2011
Location: San Diego

iTrader: (3)

You're much better off keeping your stock one somewhere handy. You only need to smog it every 2 years I believe.
1. When you need to smog install takes about 5 minutes
2. If you trade your car in, sell it etc picking up a new one is $400-$500 from the dealer or $100+ used
2007 Space Gray E92 335i 6 speed