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      02-15-2010, 12:44 AM   #117
bmw6953
Second Lieutenant
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Drives: 2006 325i
Join Date: Oct 2008
Location: california

iTrader: (0)

I did this a while back ago and I'm glad I did. The car breathes so much better and the lag between 1st and 2nd gear is reduced significantly. I say it's worth it doing it. I have not had any problems at all.